What is polyurethane?

Polyurethane is classed as a plastic material, which comes in various forms. It can be manufactured to be either flexible and soft (like rubber) or rigid (like hard plastic). Polyurethane is very versatile and can be poured, moulded, cast and sprayed. It can provide a stronger coating than plastic dip method.

What are the advantages of using polyurethane?

Easy to coat and produce complex shapes

Touch dry in 15 seconds

Wide range of hardness and colours

Extremely wear resistant

Doesn’t react with water, fuel and other everyday chemicals

Spray thickness from 1mm to 50mm

Wide choice of colours

Low cost moulds

Extremely fast process

Non sparking

Non conducting

Video showing our spray machine in action.


Why choose polyurethane over rubber?

Unlike rubber, polyurethane is extremely resistant to abrasion.

Provides high cut and tear resistance

Will not deteriorate when exposed to everyday chemicals, such as oil, petrol and other solvents

Has a much broader hardness range than rubber

Available in a wide range of colours

Lower cost low pressure tooling as opposed to high pressure rubber tooling. No vulcanisation required

What materials can be sprayed on?

Virtually any material can be sprayed onto. The process involves cleaning the product and applying a bonding agent if required. When done correctly, the spray coating is extremely difficult to remove.

Examples of the types of material that we have sprayed on are: metal, wood, GRP, fabric, foam, cardboard, concrete, mesh.

Why choose Lima Engineering?

We are one of the UKs leading experts in the manufacture of polyurethane products. Our team of engineers are incredibly knowledgeable and will provide you with the correct process to meet your requirements.  Unlike some of our competitors, who use off the shelf spray machines, our bespoke machines have been specifically designed to spray fast setting polyurethane and polyurea coatings to a wide array of components. The machines we use ensure there is no delamination, zero defects, 100% mixing, fine smooth surface finish and the ability to produce very thin tough linings.

Our self contained spray area and  shot blast booth enables us to prepare and spray items up to 10m x 5m in size.

What to do next?

Please contact our polyurethane technical team to discuss how we can help with your project.

Protective polyurethane spray coating

Spray Applications:

  • Chutes and hoppers
  • Off shore flotation bouys
  • Pump impellers and bodies
  • Truck bodies
  • Quarry vehicles and machinery
  • Foam protection
  • Shot blast tables
  • Tromel screens and mesh
  • Waterproofing
  • Pipe work (internal & external)
  • Sound proofing
  • Model making
  • Tank relining