Industrial-grade Bisphenol-A epoxy vinyl ester resin for documented chemical- and corrosion-service FRP applications.
- Viscosity
- 350 cPs (at 25°C)
- Resin Type
- Bisphenol-A Epoxy Vinyl Ester
Resin chemistry · SPR 501 series
Vinyl Ester Resins — SPR 501
Vinyl ester resins are made by reacting an epoxy resin with methacrylic acid and dissolving the result in styrene. Their reactive groups sit only at the ends of the molecule, with fewer ester links along the chain than a polyester — which is why vinyl esters are specified for FRP linings and structures facing corrosive or chemical service. They cure like polyesters, with MEKP and a cobalt accelerator at room temperature.
The SPR 501 family currently has one grade, SPR 501 VE. Its applications, specification and documents are on the Vinyl Ester Resin product page; this page covers the choice between chemistry families.
1Published
Grade
Grade
SPR 501 · 1 grade
Vinyl ester grade
Choosing a grade
How to choose within vinyl ester resins
Vinyl ester or isophthalic?
Isophthalic SPR 301 grades cover water immersion, many chemical-service laminates and specific linings such as oil-storage tanks (SPR 301 OT) and organic-solvent storage (SPR 301 OS). Vinyl ester is the route where the service is more corrosive or the specification names vinyl ester.
Vinyl ester or epoxy?
Vinyl ester processes like a polyester — hand lay-up, spray-up, winding — with room-temperature MEKP cure. Epoxy systems use a separate hardener at a fixed mix ratio and are a different product route on this site.
What to share
The finished part, the medium and its concentration, the operating temperature and any governing standard or specification. Those decide suitability, not the family name.
Corrosion resistance depends on the specific medium, concentration, temperature and laminate construction, including the corrosion barrier. No family or grade is a universal compatibility chart; share the service conditions for a review.
Guides
Read before you specify
What Is Vinyl Ester Resin?Vinyl ester resin explained: our grade is a Bisphenol-A epoxy vinyl ester for FRP where chemical or corrosion service drives selection. What its TDS covers, and what it does not.ISO Polyester Resin vs Vinyl Ester: Where the Line FallsVinyl ester is the usual step up from isophthalic polyester for aggressive service. Understand the structural reason vinyl ester resists chemicals and heat better, what it costs in money and process discipline, and how to judge which side of the line your duty sits on.Unsaturated Polyester Resin vs Vinyl Ester ResinA product-family comparison for buyers separating a standard UPR requirement from a project with stated chemical- or corrosion-resistance needs.Vinyl Ester Resin vs Epoxy ResinSeparate Samrat's published epoxy vinyl ester route from its conventional epoxy resin products before selecting a material system for an industrial requirement.Vinyl Ester Resin for Chemical-Service FRP: Buyer GuideUse Samrat's published Vinyl Ester chemical- and corrosion-service position to prepare the right technical questions without assuming chemical compatibility.
Other resin chemistries
Browse by resin chemistry
SPR 201 · Orthophthalic Polyester ResinsSPR 201 orthophthalic (ortho) unsaturated polyester resins made at Doraha, Punjab: general-purpose, casting, sheet, SMC/DMC, fire-retardant and gelcoat grades.SPR 301 · Isophthalic Polyester ResinsSPR 301 isophthalic (ISO) polyester resins made at Doraha, Punjab, for water, chemical and outdoor service: tank-lining, filament-winding, SMC/DMC, rock-bolt and gelcoat grades.SPR 401 · Terephthalic Polyester ResinsSPR 401 terephthalic polyester resins from Doraha, Punjab: SMC and DMC moulding-compound resins, a fire-retardant gelcoat and a heat-cured pultrusion grade.FRP resin by jobStart from the part you make and find the matching grade and data sheet.Resin selectorAnswer a few questions about the process and part to shortlist grades.
Ordering vinyl ester resin: questions buyers ask
Choose the grade, send the quantity and delivery location, and we reply with a quotation. Call +91 74638 81652, message us on WhatsApp +91 74638 81005 or email info@samratpolyresins.in.
1 published grade: Vinyl Ester Resin. Each is manufactured at Doraha, Ludhiana, Punjab.
Vinyl Ester Resin: 225 kg Drum.
Prices are quoted on request, for your grade, monthly quantity and delivery location. Send those details on WhatsApp (+91 74638 81005), call +91 74638 81652 or email info@samratpolyresins.in. How ordering works.
Yes. Vinyl Ester Resin each link a technical data sheet (PDF) with the published specification.
Yes. Supply covers Punjab, Haryana, Delhi, Uttar Pradesh, West Bengal, Bihar, Jharkhand, Odisha, Assam and Andhra Pradesh, with exports to Nepal, Bangladesh, Ethiopia, Cameroon and South Africa.
Traders and distributors can send a dealer enquiry with their firm, location and expected monthly volume on the dealer and distributor enquiries page.
Enquiry
Discuss a vinyl ester resin requirement
Tell us the process, the finished part, the service condition and the quantity, and the technical team can suggest a starting grade to trial. Samrat Poly Resins manufactures at Doraha, Punjab. Pricing is on request.