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RD-407 Mask Making and Casting Latex

This casting latex is the best mask latex that money can buy. This is RD407, the mask latex that nearly everyone in the industry has used for years and years

Availability: In stock

Product Name Price Qty
RD-407 Latex 1-pint
Price: $24.95
RD-407 Latex 1-Gal
Price: $109.95
RD-407 Latex 5-Gal
Price: $299.95

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  • RD-407 Mask Making and Casting Latex
  • Pouring RD407 into a CastRite mask mold
  • Completed and painted RD407 latex mask


    RD-407 Mask Making Latex 3

    Above: Anthony Giordano, Prop Master for 'Saturday Night Live,'  begins the process of creating a latex mask. Anthony starts with an original clay sculpture. When complete, he will make a two-part plaster mold using CastRite. Once the mold is finished and cleaned of clay he will pour in ArtMolds' RD-407 masking making latex. The latex is allowed to sit for approximately an hour, then poured back out again.  What remains clinging to the sides of the plaster negative will dry over the next day and be peeled out to become the actual mask.  It is the trimmed, sanded, painted and finished.

    RD-407 Casting Latex is THE liquid rubber used to make high quality masks, body parts and as a skin over polyurethane foams. RD-407 is the industry standard as it is the highest quality of latex available. RD-407 has a very good consistency, but may be thinned with water if needed, and it builds up a good thickness. 

    How to Use It The latex is usually used in a plaster mold because of the porous nature of plaster. When latex is poured into plaster, the plaster sucks the water out of the latex skin.
    Above. 407 Casting Latex is poured into a plaster mold of a mask. The mold is filled to the top. It is allowed to stand for about 45-minutes and then the 407 is poured back into its receptacle. The mold is tilted upside to drain. It is allowed to dry overnight before it is demolded.hich in turn sets the latex leaving a thin skin. Silicone and urethane molds can be used, but the results can be inferior as they do not have the same curing properties.

    Making a latex mold is a simple process just pour in the RD-407 latex and let it stand for about 15 minutes or so. Then pour it out. Often you may achieve better results by slush casting or rolling the latex around in the mold before you pour the excess out.

    Latex can be tinted in advance by adding acrylic based paints. When tinting latex note that colors tend to dry darker then they initially appear.
    Painting Latex Latex can not be painting with great success unless properly prepared. That is because it stretches causing paint to crack and chip. Please click on this link: Latex Painting Instructions for succesful painting.

    The latex surface can be painted after the mask has set, using common latex based paints.

    Latex Tips:
     Thinning:You may thin latex by adding water (use distilled water)
    Ammonia: RD-407 contains ammonia which can evaporate. Smell the latex, and if the ammonia smell has gone or diminished, add up to 26% Aqua Ammonia (from a chemical supply store). Ammonia at grocery stores is 2-3% and contains soap. Add a little at a time . . . just enough to bring it back to normal.
    Shipping Latex is destroyed when it freezes. That means it requires special handling in winter weather. It must be shipped 1- or 2-day service.

Additional Information

MSDS SHEET MSDS_407_Latex.pdf

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Helpful Links


The ArtMolds Journal

ArtMolds Journal

View the Official Magazine of EnvironMolds and (ALI) the Association Of Lifecaster's International.