Unsaturated Polyester Resin Supplier in Malaysia
- Also known as
- UPR
Unsaturated polyester resin supplier enquiries in Malaysia come from composite moulders, fabricators and manufacturers that need a UPR grade matched to their process. The product is a liquid thermosetting binder for reinforced laminates, moulded parts and mineral-filled castings, not a single resin specification for every application.
General-purpose orthophthalic and isophthalic laminating resins support hand lay-up and spray-up work, while lower-viscosity grades are selected for resin infusion or RTM. Casting and filled-composite grades are chosen around filler loading, colour, shrinkage and cure behaviour in the mould.
UPR is used in FRP tanks and pipe, building panels, roofing sheets, automotive mouldings, sanitary products, synthetic stone and general composite equipment. It remains distinct from vinyl ester and epoxy resin, and the approved resin family should be named clearly for repair or replacement work.
Send the resin chemistry or current grade, process method, viscosity and gel-time requirements, promotion state, application, quantity and delivery location. Availability, packing, documentation and delivery timing are confirmed with the quotation, together with the stated price-validity period.
- Grade
- orthophthalic, isophthalic, infusion and RTM, casting
- Appearance
- viscous liquid resin, with colour varying by grade
Unsaturated Polyester Resin grades and forms
We supply several forms to suit different formulating and dosing setups. If you need a size that is not listed, ask us.
| Grade | Form | Assay | Typical use | Packing |
|---|---|---|---|---|
| General-purpose orthophthalic UPR | viscous liquid laminating resin | — | Hand lay-up and spray-up fabrication of general-purpose glass-fibre reinforced panels, covers, mouldings and other composite parts. State the reinforcement, process and required gel-time range with the enquiry. | Packing is confirmed for the quoted grade and quantity. |
| Isophthalic UPR | viscous liquid laminating resin | — | Composite tanks, pipes, panels and moulded parts whose specification calls for an isophthalic polyester system. Service conditions and the laminate design should be provided so the resin grade can be assessed correctly. | Pack format and handling details are confirmed with the quotation. |
| Infusion or RTM grade UPR | lower-viscosity liquid resin | — | Resin infusion and resin-transfer moulding processes that require flow through dry reinforcement before cure. Buyers should state the moulding method, target viscosity or flow requirement and working-time window. | Packing is confirmed against the grade and production volume. |
| Casting and filled-composite UPR | liquid binder resin for unfilled or mineral-filled systems | — | Cast parts, synthetic stone, sanitary products and filled moulding compounds where filler loading, colour, shrinkage control and cure profile are defined by the formulation. | Packing and documentation available for the offered grade are confirmed with the quotation. |
How to buy Unsaturated polyester resin from ChemTrade
Request a quote for Unsaturated polyester resin
Use the form below to request a quotation. You can also email sales@chemtrademalaysia.com or send us a message on WhatsApp.
Specifications
| Parameter | Value | Method |
|---|---|---|
| Product class | thermosetting unsaturated polyester resin | — |
| Supply form | viscous liquid resin system | — |
| Grade basis | polyester chemistry, viscosity, gel-time profile, cure state and intended fabrication method | — |
| Cure presentation | promoted or unpromoted according to the selected grade | — |
| Appearance | clear, pale or coloured liquid, as defined by the grade specification | — |
Unsaturated Polyester Resin applications
Safety and handling
Keep containers closed in a cool, ventilated area away from heat and direct sunlight. Prevent contamination, keep cure components separate until use, and follow the storage period and handling information supplied for the quoted resin grade.
Common questions about Unsaturated polyester resin
What is unsaturated polyester resin used for?
UPR is a thermoset binder used in glass-fibre reinforced laminates, moulded composite parts, tanks, pipes, panels, roofing sheets, synthetic stone and filled castings. The fabrication method and finished-part requirements decide whether a laminating, infusion, moulding or casting grade is suitable.
Which unsaturated polyester resin grade should I request?
Start with the resin chemistry and process. General-purpose orthophthalic grades cover many hand lay-up and spray-up parts, isophthalic grades suit specifications that call for that resin family, low-viscosity grades serve infusion or RTM, and casting grades are selected around filler and shrinkage requirements.
What is the difference between orthophthalic and isophthalic UPR?
Both are unsaturated polyester resins, but they use different polyester backbones and are specified for different service and fabrication demands. Do not substitute one only from the broad UPR name; send the current resin grade, laminate specification and service conditions for comparison.
Is UPR the same as vinyl ester or epoxy resin?
No. Unsaturated polyester, vinyl ester and epoxy are separate thermoset resin families with different cure systems and performance profiles. State the resin family already approved for the part, especially for repair or replacement work, rather than treating the names as interchangeable.
What cure information should accompany a UPR enquiry?
State whether the resin must be promoted or unpromoted, the fabrication temperature range, required gel-time or working window, part thickness and moulding process. The compatible initiator, accelerator and addition method should follow the technical information for the specific quoted system.
What packing and documents are available for unsaturated polyester resin?
Send the preferred handling format and the specification, safety and quality documents required by your site. Packing and documentation available for the quoted grade are confirmed with the quotation rather than assumed across the whole resin family.
How is unsaturated polyester resin priced and delivered in Malaysia?
Price depends on resin chemistry, viscosity and cure profile, promotion state, packing, quantity and delivery location. Send those details for a current quotation with a stated validity period; route and timing are confirmed in the offer.