Low shrinkage

MODIPER® S series

MODIPER® S series is a styrene-vinyl acetate block copolymer developed by NOF from a unique polymeric peroxide. MODIPER® S series is an excellent anti shrinkage agent for unsaturated polyester (UP) resins. Especially, MODIPER® S series is effective as shrinkage inhibitor for non shrink room temperature molding and resin concrete such as SMC/BMC molding, pultrusion molding, hand layup, and spray up. MODIPER® S series is also useful as a compatibility agent for UP resins which is an anti shrinkage agent of PS and SBS.

Since MODIPER® S series block copolymer basically consists of PS and PVAc segment using special organic peroxides, SMC/BMC molding parts using MODIPER® S series have an excellent balance of all following properties:

good shrinkage control
good dimensional stability

surface quality
mechanical property

pigmentability (hazing and mottling)
hot water resistance

Applications

SMC: Bathtubs, waterproof pans, water tank panels, septic tanks, etc.
Hand lay up, spray lay up: pipe joints, FRP molds, etc.

Resin concrete: Bathroom wall paneling, artificial marble, etc.
Pultrusion molding: Septic tanks reinforcement rings, etc.

BMC: Breaker boxes, all types of housing, parabola antenna, etc.

Low shrinkage

MODIPER® S series

MODIPER SV10A

Product type: Block Copolymer
Chemical structure: Polyvinyl acetate-block-acid denaturized Polystyrene copolymer
Appearance: White powder
Package size: 20kg in paper bag

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