{"product_id":"smooth-on-ez-spray-45-urethane","title":"EZ-Spray 45 Urethane Cartidges Special Order Case of 3 1500ml","description":"\u003cp\u003e\u003cstrong\u003eEZ~\u003c\/strong\u003e\u003cstrong\u003eSpray™ 45\u003c\/strong\u003e is a polyurethane rubber for spraying through the \u003cstrong\u003eEZ~\u003c\/strong\u003e\u003cstrong\u003eSpray™ Junior Cartridge System\u003c\/strong\u003e. Refer to \u003cstrong\u003eEZ~Spray™ Junior \u003c\/strong\u003emanual prior to spraying this product. \u003cstrong\u003eEZ~Spray™ 45\u003c\/strong\u003e can be sprayed onto vertical surfaces for making molds or is good for making fast molds of large surface areas. After a suitable thickness is attained, \u003cstrong\u003eEZ~Spray™ 45\u003c\/strong\u003e cures overnight with negligible shrinkage to a durable mold rubber. Application of a support shell is achieved by spraying Smooth-On’s \u003cstrong\u003eEZ~Spray™ Plastic\u003c\/strong\u003e over the rubber mold after it has fully cured. \u003cstrong\u003eEZ~Spray™ 45\u003c\/strong\u003e is suitable for casting a variety of materials including wax, gypsum, urethane or epoxy resins, concrete, etc.\u003c\/p\u003e\r\n\u003ch3 class=\"primary-trim\"\u003eData At-A-Glance\u003c\/h3\u003e\r\n\u003ctable id=\"specs-table\"\u003e\r\n\u003ctbody\u003e\r\n\u003ctr class=\"primary-trim\"\u003e\r\n\u003ctd class=\"spec-label\"\u003e\u003cspan class=\"bold-label\"\u003eMix Ratio By Volume\u003c\/span\u003e\u003c\/td\u003e\r\n\u003ctd\u003e1A:1B\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr class=\"primary-trim\"\u003e\r\n\u003ctd class=\"spec-label\"\u003e\u003cspan class=\"bold-label\"\u003ePot Life\u003c\/span\u003e\u003c\/td\u003e\r\n\u003ctd\u003e20 minutes\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr class=\"primary-trim\"\u003e\r\n\u003ctd class=\"spec-label\"\u003e\u003cspan class=\"bold-label\"\u003eThin Film Recoat Time\u003c\/span\u003e\u003c\/td\u003e\r\n\u003ctd\u003e10 minutes\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr class=\"primary-trim\"\u003e\r\n\u003ctd class=\"spec-label\"\u003e\u003cspan class=\"bold-label\"\u003eCure Time\u003c\/span\u003e\u003c\/td\u003e\r\n\u003ctd\u003e16 hours\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr class=\"primary-trim\"\u003e\r\n\u003ctd class=\"spec-label\"\u003e\u003cspan class=\"bold-label\"\u003eShore Hardness\u003c\/span\u003e\u003c\/td\u003e\r\n\u003ctd\u003e45 A\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr class=\"primary-trim\"\u003e\r\n\u003ctd class=\"spec-label\"\u003e\u003cspan class=\"bold-label\"\u003eSpecific Gravity\u003c\/span\u003e\u003c\/td\u003e\r\n\u003ctd\u003e1.025 g\/cc\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr class=\"primary-trim\"\u003e\r\n\u003ctd class=\"spec-label\"\u003e\u003cspan class=\"bold-label\"\u003eSpecific Volume\u003c\/span\u003e\u003c\/td\u003e\r\n\u003ctd\u003e27 cu. in.\/lb.\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr class=\"primary-trim\"\u003e\r\n\u003ctd class=\"spec-label\"\u003e\u003cspan class=\"bold-label\"\u003eColor\u003c\/span\u003e\u003c\/td\u003e\r\n\u003ctd\u003eLight Blue\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr class=\"primary-trim\"\u003e\r\n\u003ctd class=\"spec-label\"\u003e\u003cspan class=\"bold-label\"\u003eTensile Strength\u003c\/span\u003e\u003c\/td\u003e\r\n\u003ctd\u003e510 psi\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr class=\"primary-trim\"\u003e\r\n\u003ctd class=\"spec-label\"\u003e\u003cspan class=\"bold-label\"\u003eElongation @ Break\u003c\/span\u003e\u003c\/td\u003e\r\n\u003ctd\u003e375 %\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr class=\"primary-trim\"\u003e\r\n\u003ctd class=\"spec-label\"\u003e\u003cspan class=\"bold-label\"\u003eDie C Tear Strength\u003c\/span\u003e\u003c\/td\u003e\r\n\u003ctd\u003e100 pli\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr class=\"primary-trim\"\u003e\r\n\u003ctd class=\"spec-label\"\u003e\u003cspan class=\"bold-label\"\u003eShrinkage\u003c\/span\u003e\u003c\/td\u003e\r\n\u003ctd\u003e\u0026lt;.001 in. \/ in.\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\r\n\u003ctd class=\"spec-label\"\u003e\u003cspan class=\"bold-label\"\u003eMixed Viscosity\u003c\/span\u003e\u003c\/td\u003e\r\n\u003ctd\u003eSprayable\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003c\/tbody\u003e\r\n\u003c\/table\u003e\r\n\u003ch2\u003eInstructions\u003c\/h2\u003e\r\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eSafety\u003c\/strong\u003e\u003c\/em\u003e - Store and use at room temperature (73°F\/23°C). These products have a limited shelf life and should be used as soon as possible. Environmental humidity should be as low as possible. Good room size ventilation is essential. Wear safety glasses, long sleeves and rubber gloves to minimize contamination risk. Spraying should be done in a well-ventilated area. \u003cstrong\u003eBreathing protection:\u003c\/strong\u003e Everyone in the spray area should wear an independent air supplied hood or NIOSH approved breathing mask.\u003c\/p\u003e\r\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eDo Not Attempt To Spray Rubber Or Plastic Without First Reading The EZ\u003c\/strong\u003e\u003c\/em\u003e\u003cstrong\u003e~\u003c\/strong\u003e\u003cem\u003e\u003cstrong\u003eSpray™ Junior Manual!\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eApplying A Sealer \/ Release Agent\u003c\/strong\u003e\u003c\/em\u003e - To prevent adhesion between the rubber and model surface, models made of porous materials (gypsum plasters, concrete, wood, stone, etc.) must be sealed prior to applying a release agent. \u003cstrong\u003eSuperseal™\u003c\/strong\u003e (available from Smooth-On) is a fast drying sealer suitable for sealing porous surfaces without interfering with surface detail. Shellac is suitable for rough contours and modeling clays that contain sulfur or moisture (water based). Non-Porous models made of metal, glass, acrylic, PVC, other hard plastics and sulfur-free clays require only a release agent which should be allowed to dry before applying the rubber.\u003c\/p\u003e\r\n\u003cp\u003e\u003cstrong\u003eIn all cases, the sealing agent should be applied and allowed to completely dry prior to applying a release agent.\u003c\/strong\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cstrong\u003ePolyurethanes are adhesive.\u003c\/strong\u003e A release agent is required to facilitate demolding. You can purchase a suitable release agent (\u003cstrong\u003eUniversal™ Mold Release\u003c\/strong\u003e) from Smooth-On or from your local Smooth-On Distributor.\u003c\/p\u003e\r\n\u003cp\u003e\u003cstrong\u003eIMPORTANT:\u003c\/strong\u003e Apply release agent to all surfaces that will contact the rubber. To ensure thorough coverage, lightly brush the release agent with a soft brush over all surfaces of the model. Follow with a light mist coating and let the release agent dry for 15 minutes.\u003c\/p\u003e\r\n\u003cp\u003e\u003cstrong\u003eBecause no two applications are quite the same, a small test application to determine suitability for your project is recommended if performance of this material is in question.\u003c\/strong\u003e\u003c\/p\u003e\r\n\u003chr\u003e\r\n\u003cp\u003eAfter material cartridge is loaded and prepared, depress EZ~Spray gun trigger and begin spraying.\u003c\/p\u003e\r\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eApplying The Rubber \u003c\/strong\u003e\u003c\/em\u003e- This product must be sprayed in layers. Generally, 4 layers (minimum 3\/8”-1\/2” or 1 cm thickness) is suitable for a working mold. The first layer, the detail coat, is a thin layer to capture model detail. Subsequent coats will add strength to the mold. Spray undercuts and recesses first. Let the first coat dry for 10 minutes at room temperature or when it becomes “tacky” before adding the next coat. Repeat until the necessary thickness is achieved. Do not allow rubber to fully cure between layers, as delaminating may result.\u003c\/p\u003e\r\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eCuring\u003c\/strong\u003e\u003c\/em\u003e - Allow the mold to cure overnight (at least 16 hours) at room temperature (73°F\/23°C) before demolding. Do not cure rubber where temperature is less than 65°F\/18°C. Post curing the rubber after rubber has cured at room temp. (applying heat – 150°F\/65°C for 4 – 6 hours) will increase physical properties and performance significantly.\u003c\/p\u003e\r\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eApply Support Shell\u003c\/strong\u003e\u003c\/em\u003e - After all layers of rubber fully cure (overnight) a support shell should be applied over the rubber mold. This will prevent the mold from distorting when casting into it. Use Smooth-On’s \u003cstrong\u003eEZ~Spray™ Plastic \u003c\/strong\u003eto apply on a hard, durable and lightweight plastic shell.\u003c\/p\u003e\r\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eUsing The Mold\u003c\/strong\u003e\u003c\/em\u003e - A release agent facilitates demolding and should be applied to the mold before each casting. The type of release agent to use depends on the material being cast. \u003cstrong\u003eUniversal Mold Release\u003c\/strong\u003e is good for releasing resins recommended for most applications and is available from Smooth-On or your local distributor. The mold should be sprayed with the release agent, brushed over all surface areas and allowed to dry before casting. To ensure thorough coverage, lightly brush the release agent with a soft brush over all surfaces of the model (especially areas of intricate detail). Apply a second thin mist coating and let dry for 15 minutes casting.\u003c\/p\u003e\r\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eMold Performance \u0026amp; Storage\u003c\/strong\u003e\u003c\/em\u003e - Fully cured molds are tough, durable and will perform if properly used and stored. The physical life of the mold depends on how you use it (materials cast, frequency, etc.). Casting abrasive materials such as concrete will eventually erode mold detail, while casting non-abrasive materials (wax) will not affect mold detail. Using the right release agent is essential in all cases. Contact Smooth-On to discuss your particular application. Before storing, the mold should be cleaned with a soap solution and wiped fully dry. Two part (or more) molds should be assembled. Molds should be stored on a level surface in a cool, dry environment. Do not stack molds, expose them to moisture or UV light.\u003c\/p\u003e\r\n\u003cp\u003e\u003ca href=\"https:\/\/www.smooth-on.com\/msds\/files\/EZ_Spray_45.pdf\" target=\"_blank\" rel=\"noopener\"\u003eSDS\u003c\/a\u003e\u003c\/p\u003e","brand":"Smooth-On","offers":[{"title":"Default","offer_id":48014564294971,"sku":null,"price":195.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0780\/7539\/6411\/files\/ez-spray-45-3cart-cs-533x400.jpg?v=1710974071","url":"https:\/\/maacaffestore.com\/products\/smooth-on-ez-spray-45-urethane","provider":"The Compleat Sculptor, Inc","version":"1.0","type":"link"}