Epoxy Resin Suppliers In Karnataka

Epoxy resin is a versatile class of reactive polymers and prepolymers that, when cured, form a strong, durable, and chemically resistant material. It is widely used in adhesives, coatings, electronics, construction, and art.

🔬 Chemical Structure & Composition

Base components: Epoxy resins typically consist of:

Epoxide (resin): Most commonly Bisphenol-A (BPA) based diglycidyl ether.

Hardener (curing agent): Often amine-based (e.g., polyamines, anhydrides).

The epoxide groups (–CH(O)CH2) react with the hardener to form a thermosetting polymer.

⚙️ Types of Epoxy Resins

Type Description

Bisphenol-A Epoxy Resin Most common, general-purpose.

Bisphenol-F Epoxy Resin Lower viscosity, better chemical resistance.

Novolac Epoxy Resin Higher crosslinking, heat resistance.

Cycloaliphatic Epoxy Used in electrical insulators.

🛠️ Properties

Property Details

Mechanical strength High tensile and compressive strength

Adhesion Excellent adhesion to various substrates

Chemical resistance Resists acids, bases, and solvents

Thermal stability Good heat resistance (up to 150–200°C depending on type)

Electrical insulation Common in electronics due to non-conductive nature

Shrinkage Low shrinkage on curing

Water resistance High (though some formulations are better than others)

🧪 Curing Process

Room temperature curing or heat curing depending on the formulation.

Can be modified by:

Curing time (minutes to hours)

Post-curing (heating after initial set to improve properties)

The mix ratio is crucial (typically 1:1 or 2:1 by weight/volume).

🧴 Applications

Industry Application Examples

Construction Floor coatings, crack repair, adhesives

Electrical & Electronics Potting compounds, PCBs, insulators

Aerospace & Automotive Composite parts, adhesives

Marine Boat repair, waterproof coatings

Art & Craft Resin art, jewelry, tabletops, river tables

Industrial Tooling, molds, corrosion protection

⚠️ Safety & Handling

Protective gear (gloves, goggles, ventilation) is essential.

Skin & respiratory sensitizer: Avoid prolonged exposure.

VOC content: Generally low, but ventilation still required.

Some hardeners can be caustic and toxic.