🎄 Christmas Dispatch Notice
Please note that Clever Shield will be closed for the Christmas period starting from Friday 19 December 2025.
-
Last dispatch before Christmas:
• Wykamol products: Friday 19 December, 11AM
• Newton products: Monday 22 December, 2PM
• All other products: Thursday 18 December, 1PM - Orders placed during the Christmas closure will be dispatched from Friday 2 January 2026.
To avoid delays, we recommend placing your orders as early as possible.
Thank you for your continued support. We wish you a Merry Christmas and a Happy New Year!
Description
Liquid Rubber PU21 Rapid 5 Minute
Liquid Rubber PU21 Rapid 5 Minute is a fast-setting polyurethane rubber designed for repairing, reinforcing, and creating rubber components. It sets to a hard, smooth, glass-like finish, providing exceptional durability and adhesion. Ideal for repairing worn rubber equipment, creating replacement parts, and encapsulating electrical components, PU21 offers a high-performance, non-corrosive solution with excellent abrasion resistance and noise reduction properties.
Key Features & Benefits
✔ Fast-Acting Formula – Pot life of 5 minutes, initial cure in 3 minutes, and full cure in 2 hours.
✔ Low Viscosity – Easily flows into intricate shapes, ensuring seamless repairs.
✔ Excellent Adhesion & Durability – Bonds securely to rubber surfaces for long-lasting performance.
✔ Abrasion & Noise Reduction – Ideal for lining equipment and reducing wear & tear.
✔ Flame Retardant & Chemical Stable – Provides enhanced safety and reliability.
✔ Non-Corrosive Electrical Encapsulation – Protects electrical components from damage.
Ideal Applications
- Repairing worn & damaged rubber parts (filling holes and tears)
- Creating new & replacement rubber components (shaft couplings, gaskets, seals)
- Encapsulating electrical components for insulation & protection
- Coating & lining surfaces for noise reduction & abrasion resistance
How to Use Liquid Rubber PU21
- Mix Part A & Part B in the correct ratio.
- For repairs: Pour into holes or tears at a minimum thickness of 3mm to create a seamless repair.
- For new parts: Pour into a pre-made mould to create custom rubber components.
- For lining applications: Brush onto surfaces at a minimum thickness of 1.5mm. Multiple layers increase durability.
- Recoat time: 60 minutes for additional layers.
💡 Available in 4 x 500g Kits. For alternative PU options, contact Customer Services.
Why Choose Liquid Rubber PU21?
✔ Quick, easy application & fast curing
✔ High strength & exceptional adhesion
✔ Versatile for repairs, new part creation & encapsulation
✔ Long-lasting, abrasion-resistant, and non-corrosive
Order Liquid Rubber PU21 Rapid 5 Minute Today!
Get high-performance, fast-curing rubber repair & encapsulation solutions with Liquid Rubber PU21.
Payment & Security
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
Security

You may also be interested in
Recently viewed
What Our Customers Say
Very good 4.7/5
Exceptional Advice & Support
Hands down in all of my reviews I've done in 21+ years, Clever Shield Coatings is one I'll always remember as the staff are friendly & passionate about their job - looking out for the customer and getting the job done right first time.
Sunny
Verified customer
Fast, friendly and reliable…
Fast, friendly and reliable. I was able to get my job done quickly and my customer was happy with the prices.
Thanks.
Kamil
Verified customer
Exceptional Advice & Support
We have been using clever shield (dealing with Richard) for over 2 years. They always give good service deliveries on time and even give technical advise when needed.
JAC
Verified customer
Really helpful! great service
Spoke to technical for some advice on the product and it was really helpful, great service
Tina Mansfield
Verified customer
Great company / knowledgeable
What a great company - knowledge about the products, spent lots of time talking me through everything - if only every company was like this one !
Ostler Info
Verified customer
Great company and speedy delivery
Really great company to deal with,excellent customer service,speedy delivery will definitely recommend and use again as a satisfied customer
Del Upson
Verified customer
Great Technical Support
Great technical support and advice on wykamol products would highly recommend this company
Shirley
Verified customer
Highly Recommended
Sandra Dow
Verified customer

