Sikadur®-31+ is a two-part, low-VOC, moisture-tolerant epoxy structural adhesive which bonds to many construction materials. It is also used for structural concrete repairs, joint filling, and crack sealing. It can be used in both do-it-yourself (DIY) and professional applications.

Features and benefits:

Easy to mix and apply.
Very low VOC (GEV EMICODE® EC1^PLUS).
Very good adhesion to many construction materials.
Very good initial and ultimate mechanical strength.
Suitable for structural concrete repair, class R4 according to EN 1504-3:2005 (Structural and non-structural repair).
Good adhesion to dry and matt damp concrete.
Thixotropic: non-sag in vertical and overhead applications.
No primer required.
Good resistance to abrasion.
Good resistance to specific chemicals.
Differently coloured components for mixing control.
Impermeable to most liquids and water vapour.
Hardens without shrinkage.
Application up to 30 mm thickness in one layer.
Temperature application range 10–30°C.

Approvals/ standards:

CE/ UKCA marking and declaration of performance based on EN 1504-3:2005 Products and systems for the protection and repair of concrete structures — Structural and non-structural repair.
CE/ UKCA marking and declaration of performance based on EN 1504-4:2004 Products and systems for the protection and repair of concrete structures — Structural bonding.

Environmental information:

Contributes towards satisfying Materials and Resources (MR) Credit: Building product disclosure and optimization — Environmental Product Declarations under LEED® v4.
Contributes towards satisfying Materials and Resources (MR) Credit: Building Product Disclosure and Optimization — Material Ingredients under LEED® v4.
Contributes towards satisfying Indoor Environmental Quality (EQ) Credit: Low-Emitting Materials under LEED® v4.
Environmental Product Declaration (EPD) in accordance with EN 15804. EPD independently verified by Institut für Bauen und Umwelt e.V. (IBU).
VOC emission classification GEV Emicode® EC1^PLUS.

EPD - Sikadur®-31+