PEROXAN A-40 L is Acetylacetone peroxide Solution in diacetone alcohol.PEROXAN A-40 L is used for the curing of unsaturated polyester resins at ambient temperature in combination with cobalt accelerators.

Functions: Curing Agent

Chemical Family: Peroxides

Compatible Polymers & Resins: Unsaturated Polyester (UPE)

Processing Methods: Centrifugal Casting, Compression Molding, Hand Lay-Up, Injection Molding, Laminating, Resin Transfer Molding

  • TypeDocument Name
View All Documents

Knowde Enhanced TDS

Identification & Functionality

Chemical Family
Plastics & Elastomers Functions

Features & Benefits

Materials Features

Applications & Uses

Compatible Polymers & Resins
Use Level
1.0 to 3.0 phr
Recommended Applications

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 mold-turnover is required, e.g. for the cold press molding or resin injection molding 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 Curing according to DIN 16945 (20g Orthoptalic resin in a double-walled test tube at 21°C) PEROXAN A-40 L 2% + PERGAQUICK CP-12 0.5% PEROXAN A-40 L 2% + PERGAQUICK CP-12 0.2% PEROXAN A-40 L 1.5% + PERGAQUICK CP-12 1.0% PEROXAN A-40 L 1.5% + PERGAQUICK CP-12 0.5% PEROXAN A-40 L 1% + PERGAQUICK CP-12 1.0% PEROXAN A-40 L 1% + PERGAQUICK CP-12 0.5% 200 400 600 800 1,000 1,200 1,400 1,600 1,800 2,000 2,200 0 20 40 60 80 100 120 140 160 180 Time in s Temperature in °C

Properties

Physical Form
Appearance
Clear Liquid
Typical Properties
ValueUnitsTest Method / Conditions
Active oxygen assayappx. 4.2%
Density at 20°C1.02g/cm³

Technical Details & Test Data

Major Decomposition Products
  • acetylacetone
  • Carbon dioxide
  • mixture of aliphatic acids
  • Water

Safety & Health

Safety Characteristics
Flash point 80°C
SADT 60°C

 

Packaging & Availability

Packaging Information
  • 30kg container

Storage & Handling

Shelf Life
6 Months
Product Handling and 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.
  • Please refer to the material safety data sheet (MSDS) for information concerning safe storage, use and handling of PEROXAN A-40 L.