Sikadur®-31+ (AB) – 6kg Low-VOC Epoxy Structural Adhesive & Concrete Repair Mortar

Sikadur®-31+ (AB) is a versatile two-part epoxy adhesive designed for structural bonding and high-strength concrete repair. With very low VOC emissions (GEV Emicode EC1PLUS), it offers a safe and environmentally friendly solution for both DIY users and professional contractors.

Ideal for bonding steel, concrete, stone, ceramics, wood, and more, Sikadur®-31+ is thixotropic, allowing application on vertical and overhead surfaces without sagging. Its superior adhesion, chemical resistance, and non-shrink hardening make it the go-to choice for structural repairs, joint filling, crack sealing, and multi-surface bonding in demanding environments.

This 6kg pack is perfect for medium-scale applications, and it complies with EN 1504-3:2005 Class R4 standards for structural repair materials.

Key Features & Benefits:

• Two-part epoxy adhesive (6kg kit: Part A + Part B)

• Low-VOC formulation – GEV Emicode EC1PLUS certified

• Strong adhesion to concrete, steel, masonry, wood, and ceramics

• EN 1504-3:2005 Class R4 – suitable for structural and non-structural concrete repair

• Thixotropic – ideal for vertical and overhead applications

• Hardens without shrinkage

• Abrasion and chemical resistance

• Impermeable to most liquids and water vapour

• Primer-free application

• Mixing control – coloured components

• Apply in thicknesses up to 30mm in one layer

• Application temperature: +10 °C to +30 °C

Colour

• Part A - White
• Part B - Dark Grey
• Part A+B mixed - Concrete Grey