Surfaces That Require Extra Preparation When Using Epoxy Resin

Epoxy resin is a versatile material, but not all surfaces are suitable for direct application. Some surfaces may require special preparation, while others may not be ideal for epoxy use. Here are the key surfaces that require extra caution:

🪵 Unsealed or Untreated Wood

• Issue: Natural wood contains moisture, oils, or contaminants that can interfere with bonding and curing.
• Solution: Apply a sealing coat before using epoxy to ensure strong adhesion and prevent air bubbles.
• Look for our Timber Clear Premium Timber Sealer, Primer & Topcoat

🌀 Flexible or Bendable Surfaces

• Issue: Epoxy resin is rigid once cured and not designed to flex. It may crack or peel when applied to:
  ✅ Rubber
  ✅ Stretchable fabrics
  ✅ Certain plastics
• Solution: Avoid using epoxy on surfaces that bend, twist, or move frequently.

🪟 Non-Porous Surfaces (Glass, Metal, Certain Plastics)

• Issue: Epoxy resin adheres best to porous surfaces. Non-porous surfaces may cause poor bonding or peeling.
• Solution: Improve adhesion by:
  ✅ Lightly sanding the surface
  ✅ Applying a primer or adhesion promoter

🔥 High-Temperature Surfaces

• Issue: Epoxy has temperature limits. Exposure to heat sources can cause softening, warping, or degradation.
• Solution: Check the manufacturer’s specifications and avoid using epoxy on:
  ✅ Hot countertops near stoves
  ✅ Engine parts or high-heat appliances

🖌️ Surfaces with Existing Coatings or Finishes

• Issue: Epoxy may not adhere well to surfaces with paint, sealants, or waxes, especially smooth or oily ones.
• Solution: Ensure proper adhesion by:
  ✅ Sanding or roughening the surface
  ✅ Cleaning off any grease, dust, or previous coatings

🍽️ Food Contact Surfaces

• Issue: Not all epoxy resins are food-safe for surfaces that touch food or drinks.
• Solution: Use only food-safe epoxy that complies with food safety regulations if working on:
  ✅ Cutting boards
  ✅ Tabletops or serving trays

🔍 Final Checks Before Applying Epoxy
✔ Read the manufacturer’s guidelines carefully.
✔ Conduct a small test area before applying epoxy to a large or important surface.
✔ Prepare each surface accordingly for best results.