CRYSTIC® 199

Pot Life

The resin, mould and workshop should be at, or above, 15°C before curing is carried out.

Additives

• For use on large vertical or inclined surfaces, up to 20 % of Crystic Pregel 27 may be added to Crystic® 199 to give it thixotropic properties.
• Fillers and pigments can adversely affect the heat, chemical and weather resistance of Crystic® 199, so should not be used if optimum properties are required.
• Customers should satisfy themselves that any additions made will give the performance required.

Post Curing - Hot Cured Laminates

• The post curing temperature will depend on the temperature which the laminate is to withstand.
• It should be increased in increments of 20°C to the final operating temperature, with a minimum of five hours post curing time at each 20°C increase.

Post Curing - Cold Cured Laminates

• For optimum heat resistant properties, the laminate should be cured for seven days at workshop temperature (18°C – 20°C).
• The post curing temperature should be increased in increments of 20°C, to that which the laminate is to withstand.
• A minimum of five hours post curing time should be given at each 20°C increase.

Hot Curing

• The recommended catalyst is Perkadox CH50X (or equivalent) which should be added at 2 % into the resin.
• The catalyst must be thoroughly dispersed into the resin, and the catalysed mix will remain usable for approximately 6 days at workshop temperature (18°C - 20°C). Cure will take place at temperatures between 80°C and 130°C, but for most applications 120 oC will be satisfactory.
• For optimum heat resistant properties, the laminate should be cured at a temperature of 80 °C – 100 °C for half an hour to one hour, and then post cured.

Cold Curing

• Crystic 199 should be allowed to attain workshop temperature (18°C - 20°C) before use.
• It requires the addition of a catalyst and an accelerator to start the curing reaction.
• N.B. Catalyst and accelerator must not be mixed directly together, as they can react with explosive violence.
• The recommended catalyst is Butanox M50 (or equivalent) which should be added at 2 % into the resin.
• The catalyst must be thoroughly dispersed into the resin and this mix will remain usable for approximately 8 hours at workshop temperature (18°C - 20°C) . Shortly before use, the correct amount of Accelerator E should be stirred into the catalysed resin.
• The amount of Accelerator E can be approximately determined from the table overleaf.

• Crystic®  199 should be stored in the dark in suitable closed containers.
• It is recommended that the storage temperature should be less than 20°C where practical, but should not exceed 30°C.
• Ideally, containers should be opened only immediately prior to use.
• Where they have to be stored outside, it is recommended that they are kept in a horizontal position to avoid the possible ingress of water.