How to Wrap Pipes Underwater with Belzona SuperWrap II

Learn How to Wrap Pipes in Aqueous Environments with Belzona SuperWrap II

JUMP TO HOW TO WRAP PIPES GUIDE

If you’re looking for guidance on how to wrap pipes in damp, wet and underwater repair environments, this blog post will take you through all of the key steps needed to successfully install the Belzona SuperWrap II composite wrap solution.

This application process features Belzona 1984 – the latest addition to the collection of resins used in Belzona SuperWrap II composite wrap applications. Engineered specifically for surface tolerance, Belzona 1984 can be applied in aqueous environments without the need for abrasive blasting.

How to Wrap Pipes Underwater, a Step-By-Step Guide

STEP ONE: SURFACE PREPARATION

For the first step in our How to Wrap Pipes Guide, brush away any loose contamination prior to roughening the surface. Then, use a suitable grinder to clean the surface to achieve the following standard of cleanliness: SSPC-SP11 power tool cleaning to bar metal and a minimum depth of profile 25µm (1 mil).  

STEP TWO: PRODUCT MIXING

Use the measuring cups provided to decant the Base (250 mL (8.5 US fluid oz) larger white cup) and Solidifier (150 mL (5.1 US fluid oz) smaller blue cup) in the correct volume ratio. Mix thoroughly in the bowl provided for three minutes until a homogenous mix is achieved.

Note: Cups should be filled to the brim to ensure correct mix ratio.

STEP THREE: WETTING OUT THE COMPOSITE WRAP

Apply the Belzona 1984 resin directly onto the Belzona 9381 composite wrap with an applicator, brush, roller, or rubber squeegee. Ensure saturation of Belzona 9381 fabric as indicated by the translucency of glass fibres on the composite fabric.

Note: In order to maximise product working life, avoid leaving rolled up wetted out composite to stand for prolonged periods.

STEP FOUR: WRAP THE WET PIPE REPAIR FABRIC

Within the marked pipe repair area, wrap the wet Belzona 9381 fabric helicoidally with a 50% overlap. Depending on the chosen Belzona 9381 fabric width, this may be indicated by a centre-line tracer stitch. Add additional wraps as required, observing over-wrap times. Regardless of conditions, no more than four wraps should be applied before the application of release film to ensure an effective bond.

6. WRAP THE RELEASE FILM

Wrap the perforated Belzona 9382 release film helicoidally over the completed wet pipe repair area. Apply tension to compress the composite.

7. SECURE AT BOTH ENDS  
For the final step in our How to Wrap Pipes Guide, secure taut at both ends of the pipe wrap application.

 

 

 

Source  :  https://blog.belzona.com/