Polymer Curing Agent A

Identification

Chemical Family

Peroxides

Chemical Name

2-Butanone peroxide

Categories

Technologies → Plastics → Product Families → Polymer Additives → Catalysts, Initiators & Crosslinkers

Markets → Industrial → Applications → Chemical & Industrial Manufacturing → Equipment & Parts

Technologies → Composite Materials → Product Families → Additives → Initiators, Promotors & Catalysts

Markets → Building & Construction → Applications → Building Materials → Interior Fixtures

Markets → Automotive & Transportation → Applications → Transportation → Marine

Markets → Industrial → Applications → Oil, Gas & Mining → Refining & Gas Processing

Applications

Compatible Polymers & Resins

Polyesters,

Vinyl Esters

Applications & Uses

Applications

POLYESTER AND VINYL ESTER CURING: Curing agent for polyester and vinyl ester resins at ambient temperature in combination with cobalt accelerators. Dosage 1-3% as supplied, with 0.5-2% of a 1% cobalt solution. "Shelf life" (gel time of resin + peroxide) usually only a few hours depending on temperature and resin type. "Pot life" (gel time of resin + peroxide + accelerator) relatively short, but may be prolonged by adding inhibitor. Other grades include Curox M-100 & Curox M-300.

CURING PERFORMANCE: Moderate evolution of heat, therefore relatively tension-free curing: moderate mold release times. Low ambient temperatures retard complete curing considerably. Action: at low temperatures with polyester resins use Curox M-300; at low temperatures with vinyl ester resins use Curox M-100. Alternatively, amine accelerator may be added, although yellow-brown discolouration in finished parts may occur.

PROCESSING METHODS: Particularly hand lay-up, spray lay-up, centrifugal casting, filament winding, casting of resins, and surface coatings (putties, fillers, gelcoats and topcoats).

SPRAY EQUIPMENT: Use spray equipment in accordance with manufacturer's instructions. Ensure all safety devices are operational. Do not clear gun by spraying MEKP into the air.

End Uses

Composites End Use

Tanks

Functions

Composite Materials Functions

Initiator

Plastics & Elastomers Functions

Initiator,

Curing Agent

Function

Initiator, Curing Agent

Processing Methods

Composites Processing Methods

Centrifugal Casting,

Filament Winding,

Hand Lay-up,

Spray Lay-up

Properties

Physical Form

Liquid

Storage & Handling

Safety & Handling

The product should be stored in the closed supply container at temperatures below +30°C. Keep in a well-ventilated place. Keep away from ignition and heat sources (e.g. direct sun light). Keep separated from other dangerous and incompatible substances. Avoid contamination with e.g. rust, dust, ash (danger of decomposition). Avoid contact with skin, eyes and clothing. At the end of work and before breaks, hands should be washed. Prophylactic skin protection recommended. Use with adequate ventilation. Suction off product vapors at their point of generation. Avoid formation of aerosols. Do not breathe vapor/ aerosol. Wear suitable respiratory protection if necessary. Peroxide residues must not be returned into the original container, danger of decomposition!