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SILTECH
OPTI-BOND

Enhanced Adhesion and Flexibility for Construction Applications

Siltech Opti-Bond is a specially formulated cement additive designed to enhance adhesion, flexibility, and workability in plaster, screed, and grout applications. Ideal for both new and existing surfaces, it provides improved bonding performance while helping to resist moisture and common construction chemicals.

  • Boosts Cementitious Material Performance

  • Supports Stronger Bonds on Various Substrates

  • Designed for Screeding, Plastering & Grouting Applications

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Product Overview

Properties

Siltech Opti-Bond is a water-based liquid concentrate that improves adhesion, flexibility, and durability in gypsum, cement, screeds, and grouts. It can be applied to a variety of surfaces, including Brick, Cement and Mortar
Plasterboard, Screed and Stone, Metal, Wood, MDF and Plywood. 
Its versatile composition ensures strong adhesion while maintaining a smooth, workable consistency.

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Why Choose
Siltech Opti-Bond?

Formulated to Improve Cement Adhesion
Enhances bond strength for better application results.


Flexible and Durable
Helps reduce cracking and shrinkage over time.


Moisture and Chemical Resistance
Provides added protection against water absorption and common construction chemicals.


Easy-to-Mix and Apply
Works seamlessly with cement, grout, and plaster mixes.

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Recommended Applications

Cement Additive

Enhances the strength and flexibility of plaster, screed, and grout mixes.

Bonding Agent

Designed for old and difficult surfaces to improve adhesion.

Surface Protection

Helps reduce water absorption and minor chemical exposure.

Versatile Compatibility

Siltech Opti-Bond is designed for a wide range of materials, including:

  • Brick and Cement

  • Metal and Mortar

  • Plasterboard and Screed

  • Stone and Wood (including plywood and MDF)

Its versatility ensures reliable performance across all your cementitious applications.

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Build with Confidence

Siltech Opti-Bond is trusted by construction professionals for its ability to improve cement performance while maintaining long-lasting, high-quality results.

Packaging Options

5L Pails Ideal for small-scale projects.

25L and 200L Drums Suitable for construction professionals.

1000L FlowbinsPerfect for industrial-scale applications.

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Durability You Can Depend On

Siltech Opti-Bond improves the performance of cementitious materials by enhancing their flexibility and strength. Its added resistance to chemicals and water penetration is an additional benefit that makes it suitable for demanding construction environments.

Need Expert Advice? Contact Us Today!

We’re here to help with all your silicone sealant needs.

  • Cape Town: +27 (0)21 534 9055

  • Johannesburg: +27 (0)11 392 2426

  • Durban: +27 (0)31 701 3481

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