
Topprime: Metal Primer for Rubber Adhesion on Steel and Aluminum Surfaces
Topprime is a high-performance metal primer for rubber adhesion. It is engineered to enhance bonding strength when applying rubber linings, conveyor belts, or polyurethane to metal surfaces — especially steel and aluminium.
By preparing the substrate surface, Topprime maximises adhesion and ensures long-lasting results in harsh industrial environments.
Effective bonding between metal and rubber requires more than just a strong adhesive. A metal primer for rubber adhesion creates the ideal foundation for chemical bonding by improving surface wettability, removing corrosion, and sealing pores.
Topprime offers:
Excellent surface preparation for rubber, fabric, and polyurethane bonding
Reliable performance on steel, aluminium, and other industrial metals
Prevents corrosion and increases overall adhesive lifespan
Quick-drying, easy-to-apply formula
It can also be used for TPU, fabric and polyurethane to metal bonding
In addition, it is an essential step when using Topstick SC adhesives on metal substrates.
Where to Use Topprime
Topprime is commonly used in:
Conveyor belt splicing to prepare pulleys or metal joints
Rubber lining of tanks, pipes, and chutes
Polyurethane to metal bonding in wear-prone areas
Surface prep for adhesive repair kits
Any application where rubber needs to stay bonded to steel or aluminium
It is widely used in mining, manufacturing, processing plants, and other heavy-duty environments.
How to Use Topprime Correctly
Surface Preparation
Abrade and clean the metal surface thoroughly. Remove oil, dust, and rust.
Application
Stir well before use. Apply one thin, even layer using a brush or roller. Let it dry fully.
Tip: Avoid applying multiple coats. One layer is sufficient for most applications.

Technical Specifications
Type: Solvent-based metal primer for rubber adhesion
Colour: Light green
Drying Time: 10–15 minutes
Coverage: Approx. 8–10 m² per litre
Shelf Life: 12 months unopened
Packaging: 1L and 5L tins
Need technical guidance? Contact us for datasheets or application advice.
Why Industrial Teams Choose Topprime
Explore Our Full Adhesive Range
We offer a full range of industrial adhesive products tailored to your needs. Each product is designed with ease of use and maximum bond integrity in mind:
Compliance & Industry Standards
Topstick range of products are manufactured and supplied by Eltim Engineering at their factory in Johannesburg, South Africa. They are engineered to withstand extreme temperatures, heavy loads, and high-pressure applications.
Interested in this metal primer for rubber adhesion?
Contact Topstick adhesives today for expert advice, custom recommendations, and responsive support.