Heat Cleaned Fiberglass Cloth - Fiberglass Cloth Supply and Education

Photo of plain weave fiberglass cloth
Style 104 fiberglass cloth
Style 7500 fiberglass cloth close up photo with construction data
Style 1129 Kevlar 72: wide from Thayercraft Inc
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Heat Cleaned Fiberglass Cloth

Fiberglass Cloth Education > The Finish
There are essentially two different levels of heat cleaning fiberglass cloth.  The first one is just a carmelization process where the PVA release agents have been cooked or carmelized but not removed.  This process is suitable for certain types of adhesives, melamine lamintes and other applications.  Fiberglass cloth at this stage has a brownish tint.   The second type of fiberglass cloth heat cleaning is where the the weaving process release agents have been cooked and removed with washing.  Fiberglass cloth at this stage is clean and clear looking and is suitable for many applications such as silicone laminates, insulation and other possible substrates.  Below is a table with most of the carmelized and heat cleaned finishes that we are familiar with.
Finish NumberDescriptionAppearanceApplications
112Heat cleaned and washed
Clear, white
Silicone laminates, heat barrier
501Heat cleaned, washed, same
as 112, used on lighter fabrics
Clear, whiteSilicone laminates
514Heat cleaned and washedClear, whiteSilicone laminates
517Heat cleaned, carmelizedTanSilicone, melamine, heat barrier
537Heat cleaned and washedClear, whiteSilicone, heat barrier
1076Heat cleaned and washedClear, WhiteSilicone, Heat barrier
CS-112Heat cleaned and washedClear, whiteSilicone, heat barrier
CS-330Heat cleaned and washedCear, whiteSilicone, heat barrier
CS-456Heat cleaned, carmelizedTan
Silicone, melamine, heat barrier
CS-508Heat cleaned, carmelizedTanSilicone, melamine, heat barrier
CS-509Heat cleaned, carmelizedTan
Silicone, melamine, heat barrier
CS-657Heat cleaned and washedClear, whiteSilicone, heat barrier
F12Heat cleaned and washedClear, WhiteSilicone, heat barrier
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