{"id":7729,"date":"2025-09-04T09:00:00","date_gmt":"2025-09-04T08:00:00","guid":{"rendered":"https:\/\/uplastech.com\/silicone-rubber-manufacturing-processes\/"},"modified":"2025-09-04T09:00:00","modified_gmt":"2025-09-04T08:00:00","slug":"silicone-rubber-manufacturing-processes","status":"publish","type":"post","link":"https:\/\/uplastech.com\/tr\/silicone-rubber-manufacturing-processes\/","title":{"rendered":"Silicone Rubber Manufacturing: LSR, HCR and the Five Processes"},"content":{"rendered":"<style>\n.upl-blog{font-size:17px;line-height:1.78;color:#1f2937}\n.upl-blog p{margin:0 0 18px}\n.upl-blog h2{font-size:26px;line-height:1.3;color:#0b2b33;margin:46px 0 14px;font-weight:700;letter-spacing:-.015em}\n.upl-blog h3{font-size:19.5px;color:#0d3b47;margin:28px 0 10px;font-weight:700}\n.upl-blog ul,.upl-blog ol{margin:0 0 20px;padding-left:22px}\n.upl-blog li{margin:0 0 9px}\n.upl-blog figure{margin:0 0 34px}\n.upl-blog figure img{width:100%;height:auto;display:block;border-radius:10px}\n.upl-blog figcaption{font-size:13px;color:#6b7280;margin-top:10px;line-height:1.5}\n.upl-blog .toc{background:none;border:0;border-radius:0;padding:0;margin:0 0 34px}\n.upl-blog .toc .lwptoc{margin:0}\n.upl-blog .toc h4{margin:0 0 10px;font-size:13px;letter-spacing:.1em;text-transform:uppercase;color:#0d5563}\n.upl-blog .toc ol{margin:0;padding-left:18px;font-size:14.5px}\n.upl-blog .toc li{margin-bottom:6px}\n.upl-blog table{width:100%;border-collapse:collapse;font-size:14.5px;margin:0 0 10px}\n.upl-blog th{background:#0d3b47;color:#fff;text-align:left;padding:11px 13px;font-weight:600;font-size:13.5px;border:0}\n.upl-blog td{padding:11px 13px;border:0;border-bottom:1px solid #e8ebed;vertical-align:top}\n.upl-blog tbody tr:nth-child(even){background:#fafbfc}\n.upl-blog .tablecap{font-size:12.5px;color:#6b7280;margin:0 0 30px}\n.upl-blog .myth{background:#fff8ef;border:1px solid #f6ddbd;border-radius:8px;padding:16px 20px;margin:0 0 26px;font-size:15.5px}\n.upl-blog .myth b{color:#a85c10}\n.upl-blog .callout{background:#f2f8f9;border-radius:8px;padding:18px 22px;margin:0 0 26px;font-size:15.5px;border-left:3px solid #14707f}\n.upl-blog .faq h3{border-top:1px solid #eceff1;padding-top:22px;margin-top:0;font-size:18px}\n.upl-blog .faq h3:first-of-type{border-top:0;padding-top:0}\n.upl-blog .cta{background:linear-gradient(135deg,#0b2b33,#0d5563);color:#fff;border-radius:12px;padding:34px;margin:48px 0 30px}\n.upl-blog .cta h2,.upl-blog .cta .cta-h{color:#fff;margin:0 0 10px;font-size:24px;font-weight:700;line-height:1.3}\n.upl-blog .cta p{color:#c9dee3;margin:0 0 20px;font-size:16px}\n.upl-blog .btn{display:inline-block;background:#e07a1f;color:#fff;text-decoration:none;font-weight:700;padding:13px 26px;border-radius:8px;font-size:15.5px}\n.upl-blog .rel{border-top:1px solid #e8ebed;margin-top:40px;padding-top:26px}\n.upl-blog .rel h4{font-size:13px;letter-spacing:.1em;text-transform:uppercase;color:#6b7280;margin:0 0 14px}\n.upl-blog .rel ul{list-style:none;padding:0;margin:0}\n.upl-blog .rel li{padding:11px 0;border-bottom:1px dashed #e8ebed}\n.upl-blog .rel a{text-decoration:none;font-weight:600;font-size:15.5px}\n@media(max-width:640px){.upl-blog h2{font-size:22px}.upl-blog table{font-size:13px}.upl-blog .cta{padding:24px}}\n\/* \u5355\u7bc7\u9875\u9690\u85cf WhatsApp \u81ea\u52a8\u5c55\u5f00\u7684\u95ee\u5019\u5361\uff0c\u53ea\u4fdd\u7559\u5706\u5f62\u6c14\u6ce1\uff0c\u907f\u514d\u906e\u6321\u4fa7\u680f\u8be2\u76d8\u63d0\u4ea4\u6309\u94ae *\/\nbody.single-post .ht_ctc_chat_greetings_box{display:none !important}\n<\/style>\n<div class=\"upl-blog\">\n<figure>\n<img fetchpriority=\"high\" decoding=\"async\" src=\"https:\/\/uplastech.com\/wp-content\/uploads\/2026\/10\/silicone-rubber-manufacturing-processes.jpg\" alt=\"Process selection map for silicone parts by volume and complexity and cost per part for LSR, compression moulding and extrusion\" width=\"1536\" height=\"909\"><figcaption>Three processes make silicone parts, and the choice is set by geometry and volume long before it is set by price.<\/figcaption><\/figure>\n<div class=\"toc\"><\/div>\n<h2 id=\"what\">Silicone is not rubber<\/h2>\n<p>Silicone gets grouped with rubber because it is elastic, but the chemistry has nothing in common. Natural rubber, EPDM and nitrile have a carbon backbone; silicone has a silicon-oxygen backbone with organic side groups. That backbone is why silicone holds properties from \u221260 \u00b0C to +200 \u00b0C, resists ozone and UV indefinitely, and stays flexible where organic rubbers harden and crack.<\/p>\n<p>It is also why silicone is expensive, has poor tear strength and is difficult to bond. The same molecular structure that makes it stable makes it weak mechanically and hard to stick to anything.<\/p>\n<table>\n<thead>\n<tr>\n<th>M\u00fclkiyet<\/th>\n<th>Silikon<\/th>\n<th>EPDM<\/th>\n<th>TPE \/ TPV<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Service temperature<\/td>\n<td>\u221260 to +200 \u00b0C<\/td>\n<td>\u221250 to +150 \u00b0C<\/td>\n<td>\u221250 to +125 \u00b0C<\/td>\n<\/tr>\n<tr>\n<td>UV and ozone<\/td>\n<td>M\u00fckemmel<\/td>\n<td>\u0130yi<\/td>\n<td>Orta d\u00fczeyde<\/td>\n<\/tr>\n<tr>\n<td>Tear strength<\/td>\n<td>Zay\u0131f<\/td>\n<td>\u0130yi<\/td>\n<td>\u0130yi<\/td>\n<\/tr>\n<tr>\n<td>Compression set at 150 \u00b0C<\/td>\n<td>\u0130yi<\/td>\n<td>Orta d\u00fczeyde<\/td>\n<td>Zay\u0131f<\/td>\n<\/tr>\n<tr>\n<td>Gas permeability<\/td>\n<td>Very high<\/td>\n<td>D\u00fc\u015f\u00fck<\/td>\n<td>D\u00fc\u015f\u00fck<\/td>\n<\/tr>\n<tr>\n<td>Bondability<\/td>\n<td>Difficult<\/td>\n<td>Orta d\u00fczeyde<\/td>\n<td>Easy<\/td>\n<\/tr>\n<tr>\n<td>Biyouyumluluk<\/td>\n<td>Excellent, widely certified<\/td>\n<td>Grade dependent<\/td>\n<td>Grade dependent<\/td>\n<\/tr>\n<tr>\n<td>Relative material cost<\/td>\n<td>Y\u00fcksek<\/td>\n<td>Orta d\u00fczeyde<\/td>\n<td>D\u00fc\u015f\u00fck<\/td>\n<\/tr>\n<tr>\n<td>Geri d\u00f6n\u00fc\u015ft\u00fcr\u00fclebilir<\/td>\n<td>Hay\u0131r<\/td>\n<td>Hay\u0131r<\/td>\n<td>Evet<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p class=\"tablecap\">Table 1 \u2014 Silicone against the two materials it most often competes with. The high gas permeability is a real limitation for sealing applications and is often overlooked.<\/p>\n<div class=\"callout\">\n<p><strong>Poor tear strength is a design constraint, not a defect.<\/strong> Silicone tears at 10\u201330 kN\/m where EPDM reaches 30\u201360. Every sharp internal corner, thin web and snap feature is a potential tear initiation point, and the fix is radius, not material.<\/p>\n<\/div>\n<h2 id=\"processes\">Three processes, three geometries<\/h2>\n<p>Silicone parts are made by liquid injection moulding, by compression or transfer moulding, or by extrusion. Each process covers a different shape space, and the overlap is smaller than people expect.<\/p>\n<table>\n<thead>\n<tr>\n<th>S\u00fcre\u00e7<\/th>\n<th>Starting material<\/th>\n<th>Geometry<\/th>\n<th>Typical volume<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>LSR injection moulding<\/td>\n<td>Two-part liquid, pumped and mixed<\/td>\n<td>Complex 3D, thin walls, precision<\/td>\n<td>1,000 \u2013 millions<\/td>\n<\/tr>\n<tr>\n<td>Compression moulding<\/td>\n<td>HCR gum, cut preforms<\/td>\n<td>Simple to moderate, thicker sections<\/td>\n<td>10 \u2013 10,000<\/td>\n<\/tr>\n<tr>\n<td>Transfer moulding<\/td>\n<td>HCR gum<\/td>\n<td>Complex, multi-cavity, inserts<\/td>\n<td>500 \u2013 50,000<\/td>\n<\/tr>\n<tr>\n<td>Ekstr\u00fczyon<\/td>\n<td>HCR gum<\/td>\n<td>Constant cross-section, continuous length<\/td>\n<td>Metres to kilometres<\/td>\n<\/tr>\n<tr>\n<td>Liquid casting<\/td>\n<td>Two-part liquid, poured<\/td>\n<td>Prototypes, very large simple shapes<\/td>\n<td>1 \u2013 100<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p class=\"tablecap\">Table 2 \u2014 Silicone processes and the geometry each covers. Extrusion is the only one that makes a continuous length; everything else makes discrete parts.<\/p>\n<h2 id=\"lsr\">LSR injection moulding<\/h2>\n<p>Liquid silicone rubber is supplied as two components \u2014 A and B \u2014 that are pumped separately, mixed in a static mixer at a 1:1 ratio and injected directly into the mould. The material cures in the tool by platinum addition, typically in 30\u201390 seconds at 170\u2013200 \u00b0C.<\/p>\n<p>The metering system is the heart of the process. Two drum pumps feed a static mixer, and the ratio has to hold within about 1% or the cure is wrong \u2014 too little catalyst and the part is under-cured and sticky, too much and it cures in the mixer. Most systems monitor pressure on both lines and alarm on ratio drift.<\/p>\n<table>\n<thead>\n<tr>\n<th>\u00d6zellik<\/th>\n<th>LSR<\/th>\n<th>HCR (compression \/ transfer)<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Viskozite<\/td>\n<td>100,000 \u2013 1,000,000 mPa\u00b7s, shear thinning<\/td>\n<td>Gum, milled<\/td>\n<\/tr>\n<tr>\n<td>Feed<\/td>\n<td>Sealed drums, pumped<\/td>\n<td>Cut preforms, hand placed<\/td>\n<\/tr>\n<tr>\n<td>\u00c7evrim s\u00fcresi<\/td>\n<td>30 \u2013 90 s<\/td>\n<td>2 \u2013 10 min<\/td>\n<\/tr>\n<tr>\n<td>Flash<\/td>\n<td>Essentially none with cold runner<\/td>\n<td>Significant, needs deflashing<\/td>\n<\/tr>\n<tr>\n<td>Labour<\/td>\n<td>D\u00fc\u015f\u00fck<\/td>\n<td>Y\u00fcksek<\/td>\n<\/tr>\n<tr>\n<td>Otomasyon<\/td>\n<td>Easy, parts drop out<\/td>\n<td>Manual demoulding<\/td>\n<\/tr>\n<tr>\n<td>Tool cost<\/td>\n<td>Daha y\u00fcksek<\/td>\n<td>Daha d\u00fc\u015f\u00fck<\/td>\n<\/tr>\n<tr>\n<td>Best volume<\/td>\n<td>Y\u00fcksek<\/td>\n<td>D\u00fc\u015f\u00fck ila orta<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p class=\"tablecap\">Table 3 \u2014 LSR against high consistency rubber. LSR wins on cycle, labour and flash; HCR wins on tool cost and material price.<\/p>\n<p>Cold runner systems are what make LSR economical at high volume. A cold runner holds the material in the runner at a temperature below cure \u2014 typically 20\u201330 \u00b0C \u2014 and injects through needle valves that open only for the shot. Without it, every shot wastes a cured runner that has to be thrown away, and on a small part the runner can be several times the part weight.<\/p>\n<p>The material is shear thinning, which is a useful property. At the high shear rates in a small gate it flows easily, and once it stops it thickens and stays where it was placed. That is why LSR fills thin walls and fine detail better than its nominal viscosity suggests.<\/p>\n<h2 id=\"compression\">Compression and transfer moulding<\/h2>\n<p>Compression moulding is the oldest and simplest route. A weighed preform of uncured silicone is placed in the heated cavity, the press closes, and the material flows to fill the shape and cures under pressure.<\/p>\n<p>It is labour intensive and it produces flash \u2014 the excess material has to escape somewhere, and it escapes into the parting line. Every part then needs deflashing, by hand, by cryogenic tumbling or by a second operation. That cost is invisible in the tool quote and very visible in the piece price.<\/p>\n<table>\n<thead>\n<tr>\n<th>Aspect<\/th>\n<th>Compression<\/th>\n<th>Transfer<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Preform placement<\/td>\n<td>Directly in the cavity<\/td>\n<td>In a pot above the cavities<\/td>\n<\/tr>\n<tr>\n<td>Material distribution<\/td>\n<td>Press closes and squeezes<\/td>\n<td>Piston pushes through runners<\/td>\n<\/tr>\n<tr>\n<td>\u0130\u00e7in en iyisi<\/td>\n<td>Simple, thick, large parts<\/td>\n<td>Complex, multi-cavity, inserts<\/td>\n<\/tr>\n<tr>\n<td>Flash<\/td>\n<td>Heavy<\/td>\n<td>Orta d\u00fczeyde<\/td>\n<\/tr>\n<tr>\n<td>Insert encapsulation<\/td>\n<td>Difficult<\/td>\n<td>\u0130yi<\/td>\n<\/tr>\n<tr>\n<td>Tool cost<\/td>\n<td>Lowest<\/td>\n<td>Orta d\u00fczeyde<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p class=\"tablecap\">Table 4 \u2014 Compression against transfer. Transfer moulding costs more in tooling and buys better material distribution and insert capability.<\/p>\n<p>Transfer moulding is worth considering when the part has inserts or when the geometry makes a compression preform awkward. The material is pushed from a pot through runners into closed cavities, so it fills more evenly and the flash is thinner. It is still a batch process with manual loading, so the labour cost stays.<\/p>\n<h2 id=\"extrusion\">Silicone extrusion<\/h2>\n<p>Silicone profiles, tube, cord and sheet are extruded from HCR through a die and then cured continuously. The line is a cold-feed extruder, a die, and a curing tunnel \u2014 either hot air, infrared or a liquid salt bath at 200\u2013250 \u00b0C.<\/p>\n<p>The complication is that uncured silicone has almost no green strength. A hot-air tunnel supports the profile on a conveyor, but a soft or large section will deform under its own weight before it cures. Salt bath curing supports the profile by buoyancy and is the standard answer for large or complex sections.<\/p>\n<table>\n<thead>\n<tr>\n<th>Curing method<\/th>\n<th>How it works<\/th>\n<th>\u0130\u00e7in en iyisi<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Hot air tunnel<\/td>\n<td>Conveyor through heated air<\/td>\n<td>Small profiles, cord, tube<\/td>\n<\/tr>\n<tr>\n<td>Salt bath<\/td>\n<td>Profile passes through molten salt at 200\u2013250 \u00b0C<\/td>\n<td>Large or soft sections, buoyant support<\/td>\n<\/tr>\n<tr>\n<td>Infrared<\/td>\n<td>Radiant heat, fast surface cure<\/td>\n<td>Thin sections, high speed<\/td>\n<\/tr>\n<tr>\n<td>Fluidised bed<\/td>\n<td>Hot particles, even heat transfer<\/td>\n<td>Profiles needing uniform support<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p class=\"tablecap\">Table 5 \u2014 Continuous curing methods for extruded silicone. Salt bath is the one that allows large hollow sections to hold shape.<\/p>\n<p>Tolerances on extruded silicone are looser than on plastics, because the material shrinks 2\u20134% on cure and continues to move for a day afterwards. A \u00b10.3 mm tolerance on a 10 mm section is achievable; \u00b10.1 mm is not, and should be designed out or moved to a moulded part.<\/p>\n<h2 id=\"curing\">Curing: platinum or peroxide<\/h2>\n<p>Both cure systems are in use and they are not interchangeable. The choice affects cost, what the part can touch, and whether a post-cure is needed.<\/p>\n<table>\n<thead>\n<tr>\n<th>System<\/th>\n<th>Mechanism<\/th>\n<th>Avantajlar<\/th>\n<th>S\u0131n\u0131rlamalar<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Platinum addition<\/td>\n<td>Hydrosilylation, no by-products<\/td>\n<td>Fast, no volatiles, no post-cure, can be food and medical grade<\/td>\n<td>Inhibited by sulphur, tin, amines, some PVC plasticisers; higher cost<\/td>\n<\/tr>\n<tr>\n<td>Peroxide<\/td>\n<td>Free-radical, produces volatiles<\/td>\n<td>Cheaper, tolerant of contamination, works with HCR<\/td>\n<td>Needs post-cure, odour, limited biocompatibility<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p class=\"tablecap\">Table 6 \u2014 The two cure systems. Platinum cure is why LSR can be used in medical and food contact applications; the same chemistry makes it sensitive to contamination.<\/p>\n<p>Platinum inhibition is the practical trap. A mould that previously ran a sulphur-cured rubber, or a glove contaminated with a sulphur-based release agent, will stop platinum silicone from curing \u2014 the part stays tacky no matter how long it stays in the tool. The rule is that platinum-cure silicone gets its own tools, its own handling gloves and its own clean area.<\/p>\n<h2 id=\"tooling\">Tooling and cost<\/h2>\n<p>Tool cost is where the three processes diverge most, and it drives the volume at which each one makes sense.<\/p>\n<table>\n<thead>\n<tr>\n<th>S\u00fcre\u00e7<\/th>\n<th>Relative tool cost<\/th>\n<th>Tool lead time<\/th>\n<th>Tool life<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Compression<\/td>\n<td>1.0<\/td>\n<td>3 \u2013 5 weeks<\/td>\n<td>Long, simple steel<\/td>\n<\/tr>\n<tr>\n<td>Transfer<\/td>\n<td>1.4 \u2013 2.0<\/td>\n<td>4 \u2013 6 weeks<\/td>\n<td>Uzun<\/td>\n<\/tr>\n<tr>\n<td>LSR, cold runner<\/td>\n<td>2.5 \u2013 4.0<\/td>\n<td>6 \u2013 10 weeks<\/td>\n<td>Long, but needle valves wear<\/td>\n<\/tr>\n<tr>\n<td>Extrusion die<\/td>\n<td>0.3 \u2013 0.8<\/td>\n<td>2 \u2013 4 weeks<\/td>\n<td>Long, die can be reworked<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p class=\"tablecap\">Table 7 \u2014 Tooling comparison. An LSR cold runner tool costs several times a compression tool and pays for itself through cycle time and the absence of deflashing.<\/p>\n<p>The crossover is usually somewhere between 2,000 and 10,000 parts a year, depending on part size and how much deflashing the compression route needs. Below that, compression or transfer is cheaper; above it, LSR's cycle time and zero-flash output dominate. Extrusion sits outside the comparison entirely because it makes a different product.<\/p>\n<h2 id=\"choose\">How to choose<\/h2>\n<p>Four questions settle it. Is the shape a constant cross-section? Then it is extrusion. Is it a discrete part with fine detail and a volume above a few thousand a year? Then LSR. Is it thick, simple and low volume? Then compression. Does it need inserts or a complex multi-cavity layout at moderate volume? Then transfer.<\/p>\n<p>Two design rules apply to all of them. Radius every internal corner \u2014 silicone tears at sharp transitions, and a 0.5 mm radius can double the tear life of a feature. And do not design a thin flexible web and expect it to hold tolerance; silicone moves, and a 0.3 mm web will vary by more than its own thickness.<\/p>\n<div class=\"faq\">\n<h3>What is the difference between LSR and silicone rubber?<\/h3>\n<p>LSR is liquid silicone rubber \u2014 a two-part liquid grade injected and cured in a mould. \"Silicone rubber\" usually refers to high consistency rubber, a gum that is compression moulded or extruded. Same chemistry, different processing.<\/p>\n<h3>Which process should I use for a silicone gasket?<\/h3>\n<p>If it is a flat gasket or an O-ring in volume, LSR injection. If it is a simple thick section at low volume, compression moulding. If it is a continuous profile seal, extrusion and cut to length.<\/p>\n<h3>Why is my platinum-cure silicone not curing?<\/h3>\n<p>Contamination. Sulphur, tin, amines and some PVC plasticisers inhibit platinum catalyst. A mould previously used for peroxide-cured rubber, or sulphur-contaminated gloves, will stop the cure entirely. Keep platinum work in a dedicated clean area.<\/p>\n<h3>How tight a tolerance can silicone hold?<\/h3>\n<p>Moulded LSR parts typically \u00b10.1 mm on small dimensions and \u00b10.5% on larger ones. Extruded profiles are looser, \u00b10.3 mm on a 10 mm section, because of cure shrinkage and post-cure movement.<\/p>\n<h3>Does silicone need a post-cure?<\/h3>\n<p>Platinum-cure LSR usually does not. Peroxide-cured HCR does, to drive off the volatiles the cure produces \u2014 typically 2\u20134 hours at 200 \u00b0C. Skipping it leaves odour and can cause fogging in enclosed applications.<\/p>\n<h3>Can silicone be bonded to plastic or metal?<\/h3>\n<p>Yes, but only with a primer or a specific self-adhesive grade, and the substrate surface has to be clean and often treated. Silicone's low surface energy makes it one of the harder materials to bond.<\/p>\n<h3>Why does silicone tear so easily?<\/h3>\n<p>Its tear strength is 10\u201330 kN\/m, well below organic rubbers. The molecular structure that gives it temperature and UV stability also makes it mechanically weak. Design with radii and avoid thin webs under load.<\/p>\n<h3>Is silicone food safe?<\/h3>\n<p>Platinum-cured silicone in the right grade is, and it is widely certified for food contact and medical use. Peroxide-cured grades generally are not, because of the cure by-products. Specify the certification, not just the material.<\/p>\n<\/div>\n<div class=\"cta\">\n<p class=\"cta-h\">Need a silicone part made?<\/p>\n<p>Send us the drawing, the quantity and the environment. We will tell you whether it should be LSR moulded, compression moulded or extruded, what tooling it needs and what the piece price looks like at your volume.<\/p>\n<p><a class=\"btn\" href=\"https:\/\/uplastech.com\/tr\/injection-molding\/\">Talk to a moulding engineer<\/a>\n<\/div>\n<div class=\"rel\">\n<h4>Continue reading<\/h4>\n<ul>\n<li><a href=\"https:\/\/uplastech.com\/tr\/overmolding-insert-molding\/\">Overmolding and Insert Molding: The Complete Design Guide<\/a><\/li>\n<li><a href=\"https:\/\/uplastech.com\/tr\/tpe-tpu-injection-molding-guide\/\">TPE and TPU Injection Molding: Hardness, Bonding and Overmolding<\/a><\/li>\n<li><a href=\"https:\/\/uplastech.com\/tr\/injection-molding-design-guidelines\/\">Injection Molding Design Guidelines: 12 Rules That Cut Part Cost<\/a><\/li>\n<li><a href=\"https:\/\/uplastech.com\/tr\/injection-molding-tolerances\/\">Injection Molding Tolerances: What Is Actually Achievable<\/a><\/li>\n<li><a href=\"https:\/\/uplastech.com\/tr\/clamping-force-tonnage-selection\/\">Clamping Force and Tonnage Selection for Injection Molding<\/a><\/li>\n<\/ul>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Liquid silicone and high-consistency rubber are different materials with different tooling. Five processes, what each is for, and where platinum cure beats peroxide.<\/p>","protected":false},"author":1,"featured_media":7721,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_seopress_titles_title":"Silicone Rubber Manufacturing: LSR, HCR and the Five Process","_seopress_titles_desc":"Liquid silicone and high-consistency rubber are different materials with different tooling. 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