Accelerators and promoters:
Generally cobalt salts (octoate, naphtenate) are used but seldom vanadium o manganese salts . The accelera- tor performances can be improved by adding promoters which exalt their action.
The PROMOX P200 is a general purpose peroxide with a low content in unreacted raw materials; so It is par- ticularly useful for the curing of orthophtalic resins, chemical resistant resins as isophtalic, bisphenolic, vinilesters resins and gel coats.
Promox peroxides are normally packaged in 25 kg polyethylene drums. Smaller packaging is available as re- quested.
Drums are palletised from 600 to 900 Kg weight net.
When the product is stored under recommended storage conditions, it keeps the original properties for a period of at least six months after delivery.
The following diagram helps the users to choose the most suitable MEKP Promox product they need.
A medium reactivity, preaccelerated orthophtalic resin has been used to test the peroxides. The curves were obtained by adding 2 parts of peroxide /100 parts of resin at 25° C.
PHYSICAL AND CHEMICAL PROPERTIES