Catalyst chart for polyester resin
Polyester resin is the most commonly used type of resin and the cheapest. Resin is a thick fiberglass liquid that when mixed with 2 percent catalyst becomes a solid. You can use more or less catalyst to change the amount of time it takes to harden but don't use much less than 2 percent. Polyester resin will bond We usually express this in terms of percentage ie:1% catalyst to resin = 10ml of catalyst to 1kg of resin. A rule of thumb for polyester laminating resin is between 1% and 2% i.e. 1% for summer (to give maximum wetting time) and 2% for winter. For polyester Gelcoats used in a moulding situation, we recommend from 2% to 2.5%catalyst. NCINSTGCCAT-v.2 REPAIR PROCEDURES Catalyst (MEPK) Ratios for Gelcoat and Resins Add the MEKP to the Gelcoat before thinning. ENCLOSED: • Dropper bottle that will yield the exact ratios referenced on this chart when mixing small I would like to understand how the polyester resin or epoxy catalyst works and to what degree it must be mixed with the base material in order to be effective. Typical product instructions advise to thoroughly mix the catalyst for a specified period of time. How thorough does this really have to be in order to have the material cure properly? Polyester resins such as these are of the ‘unsaturated’ type. Unsaturated polyester resin is a thermoset, capable of being cured from a liquid or solid state when subject to the right conditions. It is usual to refer to unsaturated polyester resins as ‘polyester resins’, or simply as ‘polyesters’.
This chart is intended as an approximate guide only, and is expressed in drops of catalyst per ounce of resin. It is based on a room temperature of 70°-75°F. For warmer temperatures, decrease catalyst by a drop per ounce of resin; for cooler temperatures, increase the amount of catalyst by a drop per ounce of resin.
system, this guide also covers: reinforcement selection, catalysts and related chem- istries, performance Terephthalic polyester resins are chemically similar to isophthalic resins sity and glass-to-resin ratio in the cured laminate. Filament The chart below indicates how much additive to add to wax-free gelcoat or polyester resin. Avoid using too much wax as it will result in fish eye and other Catalyst, also referred to as M.E.K.P. (methyl ethyl ketone peroxide) is the used to cure thermoset resins in particular polyester resin, gelcoats, and vinylester resins, A minimum of 1% ratio is required for curing of most resins, measured by 9293 Polyester Casting Resin · Crystics 9293 Polyester Casting Resin - 25kg ( No Catalyst) Mix Ratio, 1% or 2% of Resin Weight. Gel Time @ 25°C, 14 - 18 Unsaturated polyester resins are cured by a free-radical addition reaction. 40 %) in DMAA and has been used in a 70/30 ratio of DMAA/AAA. the catalyst.
CatalySt (meKP). HOTCOAT/GLOSS. 73 °F/21 °C. 2% (CC). 3. 0.03. 1. 0.06. 2. 6. 0.06. 2. 0.12. 4. 9. 0.09. 3. 0.18. 5. 12. 0.12. 4. 0.24. 7. 15. 0.15. 5. 0.3. 9. 18.
Thorough mixing of catalyst into resins and gelcoat is very important. The table below gives the correct ratios of catalyst to resin and gelcoat by weight. Blog · Delivery Information · About CFS · Polyester Resins · Glass Fibre Materials · Fibreglass Forum · Fibreglass Methods · GRP Roofing Catalyst Mixing Ratio CATALYST CONCENTRATION & EQUIVALENT MEASURE CHART. Specific gravity MEK peroxide = 1.17 polyester resin= 1.09 gelcoat = 1.3. Equivalent POLYESTER RESIN/GELCOAT IS CATALYZED WITH MEKP (METHYL ETHYL KETONE PEROXIDE). THE RATIO IS APPROXIMATELY ONE. OUNCE OF
Use MEKP Catalyst to cure any of the polyester resins. Styrene Monomer thins and Surface Curing Agent leaves hard cured finish when added to the resin.
Use MEKP Catalyst to cure any of the polyester resins. Styrene Monomer thins and Surface Curing Agent leaves hard cured finish when added to the resin.
East Coast Fibreglass Guide to quantity estimating for fibreglass laminating East Coast Fibreglass CATALYST ADDITION CHART. % of Catalyst to Resin 4% Catalyst 3% Catalyst 2% Catalyst 1% catalyst. Temperature 5 - 13°C 13 - 16°C 16 - 20°C 20 - 35°C.
POLYESTER RESIN/GELCOAT IS CATALYZED WITH MEKP (METHYL ETHYL KETONE PEROXIDE). THE RATIO IS APPROXIMATELY ONE. OUNCE OF If in doubt, use a lower catalyst ratio and be patient whilst the resin cures fully. For a standard 1% catalyst ratio, use the following mix ratio chart: Mix Ratio by CATALYST CHART. Proportions The addition of catalyst to resin starts a chemical reaction tention. POLYCASTTM Casting Resin contains polyester resin. How to mix catalyst in Resin or Topcoat. Catalyst Addition Summer Chart. Catalyst addition chart. FOLLOW US. Newsletter. Sign Up for Our Newsletter:. The ratio applies to all polyester resins, gelcoats, flowcoats etc. unless otherwise specified. Too much or too little catalyst will inhibit cure, while gel time is
Directions for Using MEKP Catalyst. MEKP stands for Methyl Ethyl Ketone Peroxide and is for use with polyester resins. This is a very dangerous material. Safety * Catalyst is very corrosive and thus is a prohibited airfreight or postage item. It is also highly inflammable. Both heat and sunlight affect it and incorrect storage can render it useless. The ratio range for catalyst to resin is 1 to 2 percent hardener to the total volume of resin to be used. For example, four drops of hardener will be 1 percent of 1 ounce of resin. Adding more of less of the catalyst agent will speed up or slow down the curing time for the resin. East Coast Fibreglass Guide to quantity estimating for fibreglass laminating East Coast Fibreglass CATALYST ADDITION CHART. % of Catalyst to Resin 4% Catalyst 3% Catalyst 2% Catalyst 1% catalyst. Temperature 5 - 13°C 13 - 16°C 16 - 20°C 20 - 35°C. This chart is intended as an approximate guide only, and is expressed in drops of catalyst per ounce of resin. It is based on a room temperature of 70°-75°F. For warmer temperatures, decrease catalyst by a drop per ounce of resin; for cooler temperatures, increase the amount of catalyst by a drop per ounce of resin.