{"product_id":"resina-siraya-tech-rebound-55a-elastica-negra-1kg","title":"Siraya Tech Rebound 55A - Black Fast-Recovery Elastic Resin 1 kg","description":"\u003ch2\u003eSiraya Tech Rebound 55A: Fast-Recovery Elastic Resin, Black (1 kg)\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eOverview:\u003c\/strong\u003e Siraya Tech Rebound 55A is a \u003cstrong\u003esoft, flexible resin (55 Shore A)\u003c\/strong\u003e engineered for \u003cstrong\u003erapid shape recovery\u003c\/strong\u003e and \u003cstrong\u003eimpact absorption\u003c\/strong\u003e. According to the official data sheet, it reaches \u003cstrong\u003e170% elongation at break\u003c\/strong\u003e, meaning it stretches significantly without tearing. Siraya recommends it for prototyping protective padding, shock absorbers, phone cases, grips, gaskets, and soft-touch surfaces. Softer than Tenacious Flex, it works with 405 nm LCD and DLP printers and comes in a 1 kg bottle in black.\u003c\/p\u003e\n\n\u003ch3\u003eKey Specs at a Glance\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Fast-recovery elastic resin.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHardness:\u003c\/strong\u003e 55 Shore A — very soft.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eElasticity:\u003c\/strong\u003e 170% elongation at break.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIdeal for:\u003c\/strong\u003e Impact absorption and parts that must return to their original shape.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatibility:\u003c\/strong\u003e 405 nm LCD and DLP printers with screens smaller than 12 inches.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Black, 1 kg bottle.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat Can You Print with It?\u003c\/h3\u003e\n\u003cp\u003eSiraya recommends Rebound 55A for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtective padding prototypes\u003c\/strong\u003e: cushions and impact pads.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShock-absorbing parts\u003c\/strong\u003e and vibration dampeners.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexible consumer products\u003c\/strong\u003e: phone cases and grips.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndustrial gaskets, seals, and soft-touch surfaces.\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSports equipment prototypes\u003c\/strong\u003e: handles and impact zones.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eA High-Viscosity Resin: Tips for Successful Prints\u003c\/h3\u003e\n\u003cp\u003eRebound 55A has a \u003cstrong\u003every high viscosity (8,000 cps)\u003c\/strong\u003e, so a little preparation goes a long way:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDo not shake.\u003c\/strong\u003e This resin contains no settling pigments — shaking only introduces bubbles.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLet it rest\u003c\/strong\u003e in the vat for 5–10 minutes before printing to allow bubbles to rise and dissipate.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrint between 25–35 °C.\u003c\/strong\u003e The absolute minimum is 20 °C; printing below this temperature will cause failures.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjust lift speed and rest time after retraction:\u003c\/strong\u003e slower lifts and longer rest times give the resin time to flow back under the build plate.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrepare your build plate:\u003c\/strong\u003e make sure it is level, thoroughly clean, and ideally lightly sanded. Keep the vat clean and free of any cured resin debris.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrinter size:\u003c\/strong\u003e compatible with most 405 nm LCD and DLP printers with screens under 12 inches. For larger machines, Siraya recommends checking compatibility first.\u003c\/li\u003e\n\u003cli\u003eIf your printer displays a warning that the build plate cannot fully descend due to resin resistance, you can safely dismiss the warning and continue printing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cp\u003eData sourced from the official Siraya Tech data sheet.\u003c\/p\u003e\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eProperty\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003cth\u003eMethod\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTensile Strength at Yield\u003c\/td\u003e\n\u003ctd\u003e6 MPa\u003c\/td\u003e\n\u003ctd\u003eASTM D638\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eYoung's Modulus\u003c\/td\u003e\n\u003ctd\u003e95 MPa\u003c\/td\u003e\n\u003ctd\u003eASTM D638\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eElongation at Break\u003c\/td\u003e\n\u003ctd\u003e170 %\u003c\/td\u003e\n\u003ctd\u003eASTM D638\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHardness\u003c\/td\u003e\n\u003ctd\u003e55 Shore A\u003c\/td\u003e\n\u003ctd\u003eASTM D2240\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSolid \/ Liquid Density\u003c\/td\u003e\n\u003ctd\u003e1.2 g\/cm³ \/ 1.11 g\/ml\u003c\/td\u003e\n\u003ctd\u003eASTM 792 \/ D1475\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWater Absorption (24 h)\u003c\/td\u003e\n\u003ctd\u003e2 %\u003c\/td\u003e\n\u003ctd\u003eASTM D570\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eViscosity at 25 °C\u003c\/td\u003e\n\u003ctd\u003e8,000 cps\u003c\/td\u003e\n\u003ctd\u003eASTM D7867\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eColor \/ Contents\u003c\/td\u003e\n\u003ctd\u003eBlack \/ 1 kg (900 ml)\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKU\u003c\/td\u003e\n\u003ctd\u003eST0050\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003ePost-Processing\u003c\/h3\u003e\n\u003cp\u003eSiraya recommends that after washing and drying the surface, you perform \u003cstrong\u003eheat drying at 50 °C for at least 60 minutes (90 minutes recommended)\u003c\/strong\u003e in a food dehydrator or oven with accurate temperature control, to fully evaporate the solvent. You'll notice the print shift from a slightly translucent black to a deeper, more opaque black. Then \u003cstrong\u003ecure under UV light for 10–15 minutes\u003c\/strong\u003e, rotating the part every 5 minutes.\u003c\/p\u003e\n\u003cp\u003eStore the resin in its original opaque bottle, tightly sealed, in a cool, dark, and dry location — ideally between 15–25 °C. A \u003ca href=\"https:\/\/mrresin.es\/collections\/maquinas-lavado-curado-wash-cure\"\u003ewash and cure station\u003c\/a\u003e makes the post-processing workflow much easier. Browse more options in our \u003ca href=\"https:\/\/mrresin.es\/collections\/resinas-3d-flexibles\"\u003eflexible resins\u003c\/a\u003e collection, or find compatible printers in our \u003ca href=\"https:\/\/mrresin.es\/collections\/impresoras-3d-resina\"\u003eresin 3D printers\u003c\/a\u003e lineup.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions About Siraya Tech Rebound 55A\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the Rebound 55A?\u003c\/strong\u003e\u003cbr\u003eA soft, elastic resin (55 Shore A) that snaps back to its original shape quickly and absorbs impacts effectively.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow much can it stretch?\u003c\/strong\u003e\u003cbr\u003eUp to 170% before breaking, according to Siraya's official technical datasheet.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is it used for?\u003c\/strong\u003e\u003cbr\u003eImpact guards, dampeners, phone cases, grips, gaskets, soft-touch surfaces, and sports equipment prototypes.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs it softer than Tenacious Flex?\u003c\/strong\u003e\u003cbr\u003eYes — Siraya describes it as softer than Tenacious Flex, with outstanding elasticity.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes it need to be shaken?\u003c\/strong\u003e\u003cbr\u003eNo. It contains no settling pigments, and shaking only introduces unwanted air bubbles.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill it work with my printer?\u003c\/strong\u003e\u003cbr\u003eIt's compatible with most 405 nm LCD and DLP resin printers with a screen smaller than 12 inches. For larger format printers, contact us before purchasing.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat temperature should I print at?\u003c\/strong\u003e\u003cbr\u003eBetween 25 and 35 °C — never below 20 °C.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat print settings should I adjust for its viscosity?\u003c\/strong\u003e\u003cbr\u003eLower your lift speed and increase the rest time after retraction to allow the resin to flow properly beneath the build plate.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow do I post-process it?\u003c\/strong\u003e\u003cbr\u003eHeat dry at 50 °C for 60–90 minutes to evaporate the solvent, then UV cure for 10–15 minutes.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow should I store it?\u003c\/strong\u003e\u003cbr\u003eIn its original opaque bottle, tightly sealed, in a cool, dark, and dry place at 15–25 °C.\u003c\/p\u003e","brand":"Siraya Tech","offers":[{"title":"Default Title","offer_id":55156928119121,"sku":"ST0050","price":70.46,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0852\/0414\/0369\/files\/siraya-tech-rebound-55a-resina-elastica-negra-1kg.jpg?v=1790962146","url":"https:\/\/mrresin.es\/en\/products\/resina-siraya-tech-rebound-55a-elastic-black-1kg","provider":"Mr Resin","version":"1.0","type":"link"}