Orthophthalic Unsaturated Polyester Resin For Mold

Orthophthalic Unsaturated Polyester Resin For Mold

Unsaturated polyester resin is a condensation polymer formed by the reaction of polyols and saturated/unsaturated dibasic acids at 190-220℃ until the expected acid value or viscosity is met. After reaction procedure, addition of certain amount of styrene monomer to formed a unsaturated polyester resin. It possesses good mechanical and electric properties, corrosion resistance. Curing can occur at room temperature without any heating equipment, and makes it easier to manufacture large objects.

Feature:

· Poor linear shrinkage

· Excellent wettability of the fibres and charges

· Cold cross-linking by addition of hardener

· Minimisation of the effect of sagging in vertical stratification (thixotropic properties)

Solid, after cross-linkage:

· Exceptional lightness

· Rigidity

· Good electrical insulation

· Dimensional stability against temperature changes

· A higher strength / weight ratio than steel

· Resistance to chemicals

· Excellent surface finish

· Water repellency

· Resistance to wear and and high temperatures

· Good mechanical resistance

Specification:

Test Items	Unit	Test Result	Test Criteria
Appearance		Light Yellow
Viscosity at 25℃	Pa.s	0.6-0.8	GB/T 7193.1-2008
Gel Time at 25℃	min	10-22	GB/T 7193.6-2008
Solid Content	%	60-67	GB/T 7193-2008
Thermal Stability at 80℃	H	>24	GB/T 7193.5-2008

Application:

· Composite materials

· Wood paints

· Flat laminated panels, corrugated panels, ribbed panels

· Gel coat for boats, automotive and bathroom fixtures

· Colouring pastes, fillers, stucco, putties and chemical anchorings

· Self-extinguishing composite materials

· Quartz, marble and artificial cement

Beside,we also have Phenolic Resin，Carboxyl Methyl Cellulose，PVB Resin，Hydroxyethyl Cellulose，Polyacrylamide，Epoxy Resin,etc. Welcome to your enquiry!

Package: by 220kgs/drum

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Product Categories : Unsaturated Polyester Resin