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EPIKOTE Resin 828

EPIKOTE Resin 828 EPOXY RESINS

Product Code: SDF-EPO-105

EPIKOTE Resin 828: Undiluted bisphenol-A liquid epoxy resin for formulation, coatings, casting and composites.

Why does it matter?

Epoxy selection must consider viscosity, pot life, mix ratio, exotherm, cure cycle and Tg as well as final strength. A TDS mix ratio specified by weight must not be measured by volume.

Application checklist

  • Store components in dry, clean conditions.
  • Weigh A and B accurately and mix homogeneously.
  • Control pot life and exotherm for the part mass.
  • Record cure temperature and time.
  • Trial a sample panel/part before serial production.

Compare alternatives in the resin selection guide.

Technical Details

The values above are typical or sales-specification data transcribed from the linked TDS. Use the current TDS/SDS, batch certificate and actual production trial together for design, safety and process decisions.

Technical Specifications

Resin type Undiluted bisphenol-A / epichlorohydrin epoxy
Viscosity at 25°C 12–14 Pa·s
Epoxy group content 5260–5420 mmol/kg
Epoxy molar mass / EEW 184–190 g/equivalent
Density 1.16 kg/L
Flash point (PMCC) >150°C
Storage Original closed container at room temperature, protected from moisture
Stated minimum shelf life 3 years from date of certification

Areas of Use

Electrical/electronic potting and impregnation

Flooring, adhesives, mortars and grouts

Composite filament winding

Solvent-free and high-solids coatings

Pigmented/filled formulations

Advantages

Medium viscosity

Good pigment wetting

Resistance to filler settling

High mechanical performance

Good chemical resistance

S.S.S

Frequently Asked Questions

Which application suits EPIKOTE Resin 828?
Undiluted bisphenol-A liquid epoxy resin for formulation, coatings, casting and composites. Final suitability must be verified for resin/hardener system, part geometry, temperature and production trials.
What is most critical in mixing and curing?
This is a formulation resin; hardener, stoichiometry and cure cycle must be defined by the selected system technical data.
Is a trial required before serial production?
Yes. TDS values are typical laboratory data. Mass effect, exotherm, humidity, tooling and reinforcement/core compatibility must be validated by a small-scale trial.
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