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DIY PROTECTIVE RESPIRATOR
» DIY Protective Slicone Respirator
» How To Make a Protective Respirator

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Home : DIY Protective Respirator

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DIY Protective Respirator Instructional Video (802307)
Smooth-ON video shows how to quickly make 'home-made' plastic respirators from a 3D printed model featuring Ecoflex 00-35 silicone rubber and TASK 8 urethane resin. A mold is made of a 3D printed respirator using Ecoflex 00-35 fast setting silicone. Ecoflex 00-35 is an extremely soft and stretchable silicone rubber. After demolding, TASK 8 liquid plastic resin is poured into the mold. TASK 8 has a higher heat resistance than other urethane resins, making it suitable to be disinfected at temperatures up to 265F. A gasket of Ecoflex 00-35 silicone is poured into a 3D printed mold. The gasket is adhered to the resin respirator using Sil-Poxy silicone adhesive to create a proper seal onto the face. Straps are created using a rubber band or other elastic band. These are attached to the respirator. A piece of HEPA fabric is inserted into the front of the respirator to complete the respirator.

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DIY Protective Silicone Respirator Instructional Video (802349)
Smooth-ON video shows how to create a 'squeeze mold' which compresses the silicone rubber in a very narrow cavity. The 'squeeze mold' is created by claying up the 3D printed model, then pouring Smooth Cast 65D to create the first half of the rigid mold. After the first half of the rigid 'squeeze mold' is cured, the clay is removed, Ease Release 200 release agent is applied, and the second half is poured. After the rigid mold is fully cured, the 2 halves are separated, and the model is removed. Mold Star 20T silicone is pigmented with Silc-Pig Electric Blue and poured into the mold. After the Mold Star cures, the 2 halves are separated, and the cast silicone piece is removed. Separate molds for the filter housing are made using Mold Star 20T, and Smooth-Cast 65D is poured to create a rigid filter housing. A piece of a HEPA vacuum cleaner bag is used as the filter media in the filter assembly. The mask is finished with a rubber band which is used as a strap.

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*All prices are in Canadian funds.