Pergan - Model PEROXAN A-40 -Acetylacetone Peroxide
PEROXAN A-40 L is used for the curing of unsaturated polyester resins at ambient temperature in combination with cobalt accelerators. With the curing system PEROXAN A-40 L in combination with a cobalt accelerator a much faster speed of cure may be achieved than with curing systems based on a MEKP plus cobalt accelerator. Normally, the gel times with PEROXAN A-40 L are comparable to those with PEROXAN ME-50 L.
PEROXAN A-40 L is particularly suitable in those applications where a fast mould-turnover is required, e.g. for the cold press moulding or resin injection moulding techniques.
The system PEROXAN A-40 L plus cobalt accelerator will give a higher peak exotherm than a standard MEKP / cobalt accelerator system. Due to this fact, it is recommendable to avoid the production of too thick laminates in one operation. At low temperatures a reasonable speed of cure is still obtained when PEROXAN A-40 L is used in combination with a cobalt amine accelerator, e.g. PERGAQUICK C24 AX, which contains N,N-Dimethylaniline as promotor.
Depending on working conditions, the following peroxide and accelerator dosage levels are recommended:
- PEROXAN A-40 L: 1,0 to 3,0 phr
- PERGAQUICK C12 X (Cobalt, 1%): 0,5 to 2,0 phr
- Appearance: clear liquid
- Active oxygen assay: appx. 4.2%
- Density at 20°C: 1.02 g/cm³
Storage
- Maximum storage temperature (Ts max): 25°C
- Minimum storage temperature (Ts min): 5°C
- Storage stability as from date of delivery: 6 months
Keep packaging tightly closed in a well ventilated place at indicated storage temperature. Keep away from reducing agents e.g. amines, acids, alkalis, heavy metal compounds (e.g. accelerators, driers, metal soaps). Never weigh out in storage room.
Oxidizing agent. Decomposes violently under the influence of heat or by contact with reducing agent. Never mix with accelerators.
Safety characteristics
- Flash point:80°C
- SADT: 60°C