Sikadur-33 - 2-component epoxy adhesive - Sika

Sikadur-33 - 2-component epoxy adhesive - Sika

Two-component thixotropic structural adhesive based on epoxy resin, presented in a cartridge

Areas of application

For structural bonding of:

• Concrete elements.
• Hard natural stone.
• Ceramic, fiber cement.
• Mortar, bricks, blocks, masonry, plaster, etc.
• Steel, iron, aluminum.
• Drink.
• Polyester, epoxy.

Concrete repair:

• Corners and angles.
• Filling holes and voids.
• Joints.

Joints and crack bridging:

• Crack bridging and joints (inert).

Metal structure and framework:

• Fixing of rails, banisters, balustrades and brackets.
• Fixing door and window frames.

For use with:

• Concrete.
• Hard natural stone.
• Solid rock.
• Hollow and solid masonry.
• Steel.
• Drink.

Features / Benefits

• Can be used on wet concrete.
• Excellent adhesion to the substrate.
• Does not leak, even on the ceiling.
• High capacity to withstand stress.
• Hardening without shrinkage.
• Does not contain styrene.

Packaging

250 ml cartridge

Appearance / Color

• Component A: white
• Component B: gray
• Component A+B: gray

Consumption

1.35 kg / mm / m²

Conservation

12 months

FAQ - Frequently Asked Questions

1. Can Sikadur-33 be applied to slightly damp concrete?
   Yes - Sikadur-33 tolerates a slightly damp substrate (without standing water).
2. What is the maximum possible layer thickness?
   The recommended thickness is 0.5 mm to 10 mm. Beyond 10 mm, apply in successive layers.
3. How long do I have before the mixture starts to harden (pot life)?
   At +23°C, the pot life is approximately 60 minutes.
4. How long does it take for the bonding to become strong enough?
   To achieve approximately 80% of performance: at +20°C → ~2 days; at +10°C → ~3 days; at +35°C → ~1 day.
5. What materials can I bond with Sikadur-33?
   Concrete, stone, bricks, mortar, steel, aluminum, wood, polyester, composites, etc.
6. Does the product shrink as it hardens?
   No, Sikadur-33 cures without shrinkage.
7. How long can the product be kept in stock?
   12 months in sealed packaging, stored away from frost, in dry conditions between +10 and +30°C.
8. Does the product comply with construction standards?
   Yes, it complies with EN 1504-4 for structural bonding.
9. What to do if you interrupt work and the nozzle becomes blocked?
   Release the gun pressure. If the resin hardens in the nozzle, replace the static mixer tip.
10. Is the product suitable for load-bearing elements or heavy loads?
    Yes, it is a high-strength structural adhesive. However, for critical applications or structural design, it is recommended to consult a structural engineer to verify the long-term permissible loads (creep may play a role).