PERGASLOW PK-40 - Pergan - Polymerization Inhibitor

Knowde Enhanced TDS

Identification & Functionality

Carrier: Xylene
Chemical Name: 2,6-di-tert-butyl-p-cresol
Plastics & Elastomers Functions: Polymerization Inhibitor
Technologies: Elastomers,
Plastics
Product Families: Elastomers — Elastomer Additives
Performance Additives
Plastics — Polymer Additives
Performance Additives

Applications & Uses

Markets: Building & Construction,
Consumer Goods,
Industrial
Applications: Building & Construction — Building Materials
Pipes & Plumbing
Industrial — Chemical & Industrial Manufacturing
Equipment & Parts,
Other Industrial Applications
Consumer Goods — Other Consumer Goods Applications
Compatible Polymers & Resins: Unsaturated Polyester (UPE)
Plastics & Elastomers End Uses: Pipe Seals,
Pipes
Plastics & Elastomers Processing Methods: Centrifugal Casting,
Filament Winding,
Hand Lay-Up,
Laminating,
Pultrusion,
Resin Transfer Molding
Use Level: 0.1 to 0.3 phr
Recommended Applications: PERGASLOW PK-40 is used at ambient temperatures for lengthening: 1) the shelf life of SMC and BMC at ambient temperature. 2) the pot life of a mixture of UP resin / peroxide at ambient temperature. An advantage of PERGASLOW PK-40 in comparison with for example p-Benzoquinone is that PERGASLOW PK-40 is very effective at ambient temperature but hardly shows any influence on the cure at elevated and high temperature. The inhibitor should be added to the resin first to create a maximum effect. After proper mixing, the peroxide and the accelerator can be added. Depending on application area and working conditions, the following inhibitor dosage levels are recommended: PERGASLOW PK-40: 0,1 to 0,3 phr

Properties

	Value	Units	Test Method / Conditions
Active substance assay	appx. 40	%	—
Density at 20°C	0.89	g/cm³	—

Packaging & Availability

Storage & Handling

Shelf Life: 6 Months
Product Handling and Storage: Maximum storage temperature (Ts max) : 20°C

Minimum storage temperature (Ts min) : 0°C

Storage stability as from date of delivery : 6 months

Direct contact with organic peroxides should be avoided because of risk of self-accelerating decomposition of the organic peroxide.

Please refer to the material safety data sheet (MSDS) for information concerning safe storage, use and handling of PERGASLOW PK-40.