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  • Pre-preg

    Commonly referred to as “advanced composites” – since high strength fibers are often used – pre-impregnated (pre-preg)... Read More »

  • Open Lay / Wet Resin

    The open lay process is the simplest method of making a composite part. The part is made with a “cosmetic” surface, the one that is in... Read More »


  • Can I use the same release for all of my parts, regardless of whether they are gel-coated or not?

    While some manufacturers may choose to use one semi-permanent release for all their needs, we believe that gel coated and non-gel coated... Read More »

  • How should I remove a semi-permanent mold release?

    Removal of semi-permanent releases can be more difficult due to the toughness of the cross-linked coating. The recommended procedure is to use a... Read More »

  • How do I deal with rub marks?

    Rub marks are typically a result of excess abrasion. Proper preparation of the tool and more frequent touch ups of release should minimize rub... Read More »

  • I get streaking when applying. What should I do?

    Many of the same factors that cause hazing also cause streaking. In our experience, streaking that occurs on application of release is most... Read More »

  • I see haze on the mold. What causes it and can I get rid of it?

    Haze On The Mold After Applying Release (before molding): This can be caused by reaction of the release with contaminants on... Read More »

  • What prep should I follow after buffing, sanding, or stripping the mold?

    Sanding, heavy buffing and stripping can open pores of a mold, allowing un-reacted styrene to bleed out of the mold during production. This can... Read More »

  • What mold prep should I follow after a fast patch? Sometimes I need to put the mold back in production within one hour.

    A lot depends upon the material you are using to patch the mold, how thoroughly the patch material cures, as well as the depth and overall size... Read More »

  • What should I do if raw (un-catalyzed) resin or gel coat over-spray gets on the mold?

    Gel Coat Over-Spray: Gel coat over-spray has been catalyzed. Even if the film over-sprayed on the mold is thin, it will... Read More »