Most concrete floors include expansion or movement joints which are generally filled with a flexible filler. The concrete joint edges can break away with wear and tear and deteriorate quickly as fork lifts and trolleys pass over them. Traditional repairs require the joint edges to be reformed with mortar and the joint filled with expansion materials, a time consuming two stage process.

Watco Flexible Joint Repair eliminates the need to reform the joint edges. The flexible polyaspartic mortar fills the joint and broken concrete joint edges in one simple process.

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• Features & Benefits
• Surface Preparation
• Mixing
• Application

Features & Benefits

• Repairs broken expansion joints quickly and easily
• Tough, flexible polyaspartic formula
• Resists heavy traffic including forklifts
• Ready for use in only 8-12 hours
• Flexible to cope with movement, hard surface for areas of heavy traffic and high use
• Suitable for interior and exterior use

Surface Preparation

The product can be applied at any depth, but to provide an economical repair, aim to apply at 25mm and a minimum of 5mm. Deep joints can be packed to within 25mm of the surface using a Watco Back Up Rod or similar packing material.

When the product is used to fill a joint and adjacent joint edge damage, keep the width of the repair to a maximum of 100mm and a minimum depth of 5mm.

Rake out loose material from the floor joint. The joint sides should be clean and dry. Remove any grease or oil using Watco Concroff and allow to dry.

Tip - Masking tape can be used to provide neat edges. Deeper holes can be packed using Watco Back Up Rod or similar. Aim to leave 25mm for the Flexible Joint Repair.

Mixing

It is important to mix the 3 components thoroughly. Empty the contents of the smaller tin into the larger tin and mix thoroughly with a spatula or similar wide bladed tool. A slow speed electric drill and mixing blade can be used but also use a spatula to scrape the inside of the tin.

Empty the mixed components into the outer plastic bucket and gradually add the sand, mixing continually. Use immediately.

Application

Use at a temperature range of 10°C - 30°C.

Trowel into the joint and smooth the surface with a trowel.

Tip - It is easier to achieve a smooth surface if the trowel is wiped with a cloth dampened with white spirit. If masking tape has been used, leave in place for about an hour before removing