{"title":"Silicones for Vacuum Bagging \u0026 Composite Production","description":"\u003ch2\u003eSilicones for Vacuum Bagging \u0026amp; Composite Production\u003c\/h2\u003e\n\u003cp\u003eVacuum bagging is an essential technique in the professional composites industry for producing high-quality carbon fiber, fiberglass, and aramid laminates. Silicones play a crucial role in this process: as a reusable vacuum bag, as a sealing material, and as a protective coating. At Silicones and More, we supply specialized silicones from \u003cstrong\u003eWacker\u003c\/strong\u003e and \u003cstrong\u003eCHT\u003c\/strong\u003e that are specifically suitable for these demanding applications.\u003c\/p\u003e\n\u003ch2\u003eVideos: Vacuum Bagging in Practice\u003c\/h2\u003e\n\u003csection style=\"background: #fff; padding: 30px; border-radius: 12px; box-shadow: 0 4px 15px rgba(0,0,0,0.1); margin-bottom: 30px;\"\u003e\n\u003cp style=\"color: #555; margin-bottom: 25px;\"\u003eSee how silicone vacuum bags are made and applied in composite production:\u003c\/p\u003e\n\u003cdiv style=\"display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 20px;\"\u003e\n\u003cdiv style=\"border-radius: 8px; overflow: hidden;\"\u003e\n\u003cdiv style=\"position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden;\"\u003e\u003ciframe title=\"Siliconen vacuümbagging video 1\" src=\"https:\/\/www.youtube.com\/embed\/G4RiTTRBYV4\" style=\"position: absolute; top: 0; left: 0; width: 100%; height: 100%; border: none; border-radius: 8px;\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-radius: 8px; overflow: hidden;\"\u003e\n\u003cdiv style=\"position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden;\"\u003e\u003ciframe title=\"Siliconen vacuümbagging video 2\" src=\"https:\/\/www.youtube.com\/embed\/puT0-bFm-J8\" style=\"position: absolute; top: 0; left: 0; width: 100%; height: 100%; border: none; border-radius: 8px;\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-radius: 8px; overflow: hidden;\"\u003e\n\u003cdiv style=\"position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden;\"\u003e\u003ciframe title=\"Siliconen vacuümbagging video 3\" src=\"https:\/\/www.youtube.com\/embed\/zFUtu_Ghacg\" style=\"position: absolute; top: 0; left: 0; width: 100%; height: 100%; border: none; border-radius: 8px;\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003ch2\u003eWhy Silicones for Vacuum Bagging?\u003c\/h2\u003e\n\u003csection style=\"background: #f8f9fa; padding: 20px; border-radius: 8px; margin-bottom: 25px;\"\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eReusable\u003c\/strong\u003e – silicone vacuum bags last for tens to hundreds of cycles, unlike disposable nylon film\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eTemperature resistant\u003c\/strong\u003e – suitable for autoclave processes up to 200°C+\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eChemically resistant\u003c\/strong\u003e – resistant to epoxy, polyester, and vinylester resins\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eExcellent elongation\u003c\/strong\u003e – adapts to complex geometries without tearing\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eVacuum tight\u003c\/strong\u003e – no leakage, consistent pressure build-up across the entire laminate\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eCost-effective\u003c\/strong\u003e – lower material costs per cycle with repeated use\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003ch2\u003eWacker – Elastosil C 1200 A\/B\u003c\/h2\u003e\n\u003csection style=\"background: #fff; padding: 25px; border-radius: 10px; box-shadow: 0 4px 15px rgba(0,0,0,0.1); margin-bottom: 25px;\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/siliconesandmore.com\/en\/products\/cenusil-m-825-copy-1?_pos=2\u0026amp;_sid=e11e0daaf\u0026amp;_ss=r\u0026amp;variant=49531859108181\"\u003eWacker ELASTOSIL® C 1200 A\/B\u003c\/a\u003e\u003ca href=\"\/en\/products\/9569419821397\"\u003e\u003c\/a\u003e\u003c\/strong\u003e is the reference product for casting reusable silicone vacuum bags. This 2-component platinum-cure system is specially developed for composite production and offers:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eExcellent temperature resistance\u003c\/strong\u003e – stable up to 200°C, suitable for autoclave curing\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHigh elongation and resilience\u003c\/strong\u003e – adapts to complex shapes and returns to its original form\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eLong lifespan\u003c\/strong\u003e – resistant to repeated thermal cycles without degradation\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eLow viscosity\u003c\/strong\u003e – easy to pour over molds for uniform bag thickness\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eNo shrinkage\u003c\/strong\u003e – platinum-cure system for dimensionally accurate bags\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eResistant to resins\u003c\/strong\u003e – no inhibition by epoxy, polyester, or vinylester\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eApplications:\u003c\/strong\u003e Reusable vacuum bags for autoclave, out-of-autoclave (OOA) processes, RTM (Resin Transfer Moulding) membranes, and press bags for composite presses.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/siliconesandmore.com\/en\/products\/cenusil-m-825-copy-1?_pos=2\u0026amp;_sid=e11e0daaf\u0026amp;_ss=r\u0026amp;variant=49531859108181\"\u003e\u003cspan style=\"color: #ffffff;\"\u003e\u003cspan style=\"display: inline-block; background-color: rgb(29, 113, 184); padding: 10px 25px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; border-radius: 5px; margin-top: 10px;\"\u003e\u003cb\u003e▶ View Elastosil C 1200 A\/B\u003c\/b\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/section\u003e\n\u003ch2\u003eCHT – Silicones for Vacuum Bagging \u0026amp; Composite\u003c\/h2\u003e\n\u003cp\u003e\u003ca rel=\"noopener\" href=\"https:\/\/cht-silicones.com\" target=\"_blank\"\u003eCHT Group\u003c\/a\u003e offers an extensive range of silicones specially developed for composite production and vacuum bagging applications:\u003c\/p\u003e\n\u003csection style=\"background: #fff; padding: 25px; border-radius: 10px; box-shadow: 0 4px 15px rgba(0,0,0,0.1); margin-bottom: 25px;\"\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eQVB 701\u003c\/strong\u003e – 2-component platinum-cure molding silicone especially for vacuum bags and composite production. High temperature resistance, excellent elongation, and long lifespan during repeated autoclave cycles. Reusable for tens to hundreds of cycles.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eSilSo Lite 21025 \/ 21030\u003c\/strong\u003e – lightweight silicone foams for gap-filling, thermal management, and sealing in composite structures. UL94-V0 flame retardant (21030), ideal for aerospace and EV applications.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eALPA-SIL 97116\u003c\/strong\u003e – fast-reacting platinum-cure system (pot-life 2 min) for rapid prototyping of vacuum bags and composite molds. Demolds in 2–3 hours for high productivity.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eCHT Release Coatings\u003c\/strong\u003e – silicone release agents and release coatings for molds and tools in composite production. Ensure problem-free demolding of epoxy and polyester parts.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eSilicone sealants (AS-series)\u003c\/strong\u003e – for sealing vacuum lines, connections, and edges in vacuum bagging setups. Resistant to high temperatures and chemicals.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003ch2\u003eApplications in Composite Production\u003c\/h2\u003e\n\u003cdiv style=\"display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-bottom: 25px;\"\u003e\n\u003cdiv style=\"background: #f8f9fa; padding: 20px; border-radius: 8px; border-left: 4px solid #1d71b8;\"\u003e\n\u003ch3 style=\"color: #1d71b8; margin-bottom: 10px;\"\u003eAerospace \u0026amp; Aviation\u003c\/h3\u003e\n\u003cul style=\"font-size: 0.95em; margin: 0; padding-left: 20px;\"\u003e\n\u003cli\u003eAutoclave curing of carbon fiber panels\u003c\/li\u003e\n\u003cli\u003eReusable bags for complex geometries\u003c\/li\u003e\n\u003cli\u003eRTM membranes for structural components\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #f8f9fa; padding: 20px; border-radius: 8px; border-left: 4px solid #41c0f0;\"\u003e\n\u003ch3 style=\"color: #41c0f0; margin-bottom: 10px;\"\u003eWind Energy\u003c\/h3\u003e\n\u003cul style=\"font-size: 0.95em; margin: 0; padding-left: 20px;\"\u003e\n\u003cli\u003eVacuum infusion of rotor blades\u003c\/li\u003e\n\u003cli\u003ePress bags for large composite panels\u003c\/li\u003e\n\u003cli\u003eSeals for vacuum setups\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #f8f9fa; padding: 20px; border-radius: 8px; border-left: 4px solid #1d71b8;\"\u003e\n\u003ch3 style=\"color: #1d71b8; margin-bottom: 10px;\"\u003eAutomotive \u0026amp; Motorsport\u003c\/h3\u003e\n\u003cul style=\"font-size: 0.95em; margin: 0; padding-left: 20px;\"\u003e\n\u003cli\u003eCarbon fiber body parts\u003c\/li\u003e\n\u003cli\u003eOut-of-autoclave (OOA) production\u003c\/li\u003e\n\u003cli\u003ePrototyping of composite components\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #f8f9fa; padding: 20px; border-radius: 8px; border-left: 4px solid #41c0f0;\"\u003e\n\u003ch3 style=\"color: #41c0f0; margin-bottom: 10px;\"\u003eMarine \u0026amp; Sport\u003c\/h3\u003e\n\u003cul style=\"font-size: 0.95em; margin: 0; padding-left: 20px;\"\u003e\n\u003cli\u003eShip hulls and deck components\u003c\/li\u003e\n\u003cli\u003eSurfboards, skis, and sporting goods\u003c\/li\u003e\n\u003cli\u003eLightweight constructions for boats\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2\u003eProcessing Tips for Silicone Vacuum Bags\u003c\/h2\u003e\n\u003csection style=\"background: #e8f4f8; border-left: 4px solid #1d71b8; padding: 20px; border-radius: 8px; margin-bottom: 25px;\"\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003ePrepare mold:\u003c\/strong\u003e use a suitable release coating on the mold for easy demolding of the silicone bag\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003ePouring:\u003c\/strong\u003e pour the silicone calmly and in thin layers to minimize air entrapment; vacuum degassing recommended\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eThickness:\u003c\/strong\u003e a bag thickness of 3–6 mm offers the best balance between flexibility and durability\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eCuring:\u003c\/strong\u003e allow to cure fully at room temperature or accelerate at elevated temperature (post-cure)\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMaintenance:\u003c\/strong\u003e clean with isopropanol after use; check for tears or damage before reuse\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003ch2\u003eWhy Choose Silicones and More?\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e✓ Wacker and CHT silicones directly available from the Netherlands\u003c\/li\u003e\n\u003cli\u003e✓ Smaller packages and samples available for R\u0026amp;D and prototyping\u003c\/li\u003e\n\u003cli\u003e✓ Technical support and customized advice\u003c\/li\u003e\n\u003cli\u003e✓ Scaling to bulk possible for series production\u003c\/li\u003e\n\u003cli\u003e✓ Full TDS and SDS documentation available\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eDo you have questions about the right silicone for your vacuum bagging application? Contact us for expert advice!\u003c\/em\u003e\u003c\/p\u003e","products":[{"product_id":"elastosilr-c-1200-ab","title":"Wacker Elastosil® C 1200 A\/B – Blue Addition Silicone for Vacuum Bags \u0026 Composite Mold Making","description":"\u003ch2\u003ePremium Sprayable Addition Silicone for Professional Vacuum Bag and Composite Mold Making Applications\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWacker Elastosil® C 1200 A\/B\u003c\/strong\u003e is a two-component, platinum-catalyzed addition-curing RTV-2 silicone, developed for the industrial production of reusable vacuum bags in the composites industry. The silicone has a low viscosity (8,000 mPa·s mixed) and is shear-thinning: self-leveling on horizontal surfaces, but stays put on vertical walls without running. It can be processed by brushing, spraying, or pouring. With a Shore A hardness of 25, a tensile strength of 5.0 N\/mm², and an elongation at break of 500%, the material combines flexibility with the mechanical strength required for hundreds of vacuum cycles. Mix ratio 1:1 by weight, pot life 20 minutes, demoldable after 60 minutes at room temperature. The blue color of component B provides visual mixing control. Resistant to epoxy and polyester resins.\u003c\/p\u003e\n\u003ch3\u003eKey Benefits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eShore A 25\u003c\/strong\u003e – flexible enough to conform to complex shapes and be repeatedly rolled for transport and reuse\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTensile strength 5.0 N\/mm² and tear strength 25 N\/mm\u003c\/strong\u003e – high mechanical load capacity for industrial vacuum cycles, measured according to ISO 37 and ASTM D 624 B\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePot life 20 minutes, demoldable after 60 minutes\u003c\/strong\u003e – ample processing time for large surfaces combined with fast production turnaround\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eViscosity 8,000 mPa·s with shear-thinning behavior\u003c\/strong\u003e – self-leveling on horizontal surfaces and stable on vertical walls without sagging\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNo chemical shrinkage\u003c\/strong\u003e – dimensionally stable molds and bags, critical for reproducible composite production\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eResistant to epoxy and polyester resins\u003c\/strong\u003e – suitable for common reproduction and infusion materials in the composites industry\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTypical Applications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eReusable vacuum bags for resin infusion of glass and carbon fiber\u003c\/li\u003e\n\u003cli\u003eComposite panels for commercial vehicles, trains, and buses\u003c\/li\u003e\n\u003cli\u003eAircraft and shipbuilding with fiber-reinforced plastics\u003c\/li\u003e\n\u003cli\u003eLarge-scale mold making for serial composite parts\u003c\/li\u003e\n\u003cli\u003eSpray-up production of vacuum bags on large and complex shapes\u003c\/li\u003e\n\u003cli\u003eIndustrial infusion processes with epoxy and polyester systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTarget Audience\u003c\/h3\u003e\n\u003cp\u003eThis product is developed for industrial processors in the composites industry and is not intended for general mold making or hobby applications. The material costs, processing equipment (spray or dosing unit), and post-curing at operating temperature make the product economically viable for serial composite production.\u003c\/p\u003e\n\u003ch3\u003eProcessing Instructions\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eBriefly stir components A and B separately before processing.\u003c\/li\u003e\n\u003cli\u003eMix A and B in a weight ratio of 1:1. \u003cstrong\u003eImportant:\u003c\/strong\u003e only process components A and B with the same batch number. Component A contains the platinum catalyst. The manufacturer excludes combinations of different batch numbers.\u003c\/li\u003e\n\u003cli\u003eMix slowly and evenly until a homogeneous blue color is achieved, either mechanically or via a static mixer in the dual cartridge.\u003c\/li\u003e\n\u003cli\u003eOptional vacuuming for casting applications to remove air inclusions.\u003c\/li\u003e\n\u003cli\u003eProcess within 20 minutes. Application can be done via a manual or pneumatic cartridge gun with a static mixer, a 2-component mixing and dosing machine, or via compressed air spraying for large surfaces. For small or free-form applications, brush application is also possible.\u003c\/li\u003e\n\u003cli\u003eAllow to cure at room temperature: demoldable after 60 minutes, fully cured after 24 hours at 23 °C.\u003c\/li\u003e\n\u003cli\u003eFor maximum dimensional stability of the vacuum bag: post-cure for 2 to 3 hours at the intended operating temperature, up to a maximum of 220 °C.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cdiv style=\"background: #fff3cd; border: 2px solid #ffc107; color: #856404; padding: 15px; border-radius: 8px; margin: 20px 0;\"\u003e\n\u003cstrong\u003e⚠️ Inhibition warning for addition silicone\u003c\/strong\u003e\u003cbr\u003ePlatinum-catalyzed addition-curing silicones are sensitive to inhibition. Avoid contact with: condensation silicones or their residues, latex and natural rubber, sulfur-containing clay, uncured polyester resin, tin compounds, and amine-containing substances. If in doubt, always test a small area before starting the full application.\u003c\/div\u003e\n\u003ch3\u003eAbout Wacker Chemie AG\u003c\/h3\u003e\n\u003cp\u003eWacker Chemie AG is a global market leader in the development and production of silicones for industrial and technical applications. The Elastosil® C series is specifically developed for the composites industry and is used worldwide in vacuum bag technology for production processes where reproducibility and long service life are critical.\u003c\/p\u003e\n\u003ch3\u003ePackaging and cartridges\u003c\/h3\u003e\n\u003cp\u003eSilicones and More offers Elastosil® C 1200 A\/B in 10 kg kits, 40 kg kits, and in 1.5 kg dual cartridges. \u003cstrong\u003ePlease note:\u003c\/strong\u003e the dual cartridges we produce are not identical to Wacker's original cartridges. For the cartridge variant, you may need a different \u003ca href=\"https:\/\/www.siliconesandmore.com\/products\/dispenser-manueel-mixpac-dm-1500-01\"\u003edispenser gun\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eStorage\u003c\/h3\u003e\n\u003cp\u003eStore cool and dry in the original packaging. The best-before date is on the product label. Storage beyond this date does not automatically mean the product is unusable — in this case, check the critical properties for your application before using the material in production.\u003c\/p\u003e\n\u003ch3\u003eProfessional Support\u003c\/h3\u003e\n\u003cp\u003eAre you working on a specific composite or vacuum bag application and want to know if Elastosil® C 1200 A\/B is the right choice for your project? Our technical specialists are happy to assist with material selection, process steps, and alternatives within the Wacker portfolio. Contact us via chat, email, or phone.\u003c\/p\u003e","brand":"Wacker","offers":[{"title":"10 kg. Set (5 A + 5 B) ","offer_id":49531859108181,"sku":"S11430","price":453.66,"currency_code":"EUR","in_stock":true},{"title":"40 kg. Set (20A + 20B)   ","offer_id":49531859140949,"sku":"S11562","price":1731.44,"currency_code":"EUR","in_stock":true},{"title":"Double cartridge   [1,5 Kg]","offer_id":49531859173717,"sku":"S11600","price":90.75,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0896\/4096\/0341\/files\/wacker-wacker-elastosil-c-1200-ab-blauwe-additie-silicone-voor-vac-48098033992021.png?v=1779890685"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0896\/4096\/0341\/collections\/f5b42cfc-8fa5-4f3f-8179-55f0b3ae4eed.png?v=1778145497","url":"https:\/\/siliconesandmore.com\/en\/collections\/siliconen-vacuumbagging-composiet.oembed","provider":"siliconesandmore","version":"1.0","type":"link"}