Letter 36058

Repair UPVC Lining [Australia] 

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I Have a task to supply a product that will repair a UPVC lining on a tank made of GRP, the tank contains CLO3 (clorine trioxide) is there a product that will bond to the GRP and also the UPVC?, I would be grateful for any assistance.

Regards

John Roope
Zycon pty ltd - West Australia

Hi John,

I don't quite fathom your question but will try to !

When you have a PVC sheet and want to bond fibreglass to it, there are now commercially available materials to achieve this. These you'd probably get from the resin supplier. But any good dual laminate fabricator could give
you advice.

In the DARK AGES we used to make up a heavy PVC cement using THF and drop on some heavy glass woven roving ... and when the PVC 'dried', ah, we have a good lock to the exposed section of the roving... a world's first back in 1962-ish.

Whatever you do, don't expose the frp to the Cl03 and try ...of course.... to weld any new sections to the adjoining PVC.

... just had another glance at your request ... there's no product I know of that will successfully bond PVC to an existing and CURED FRP build-up .... with the above mentioned approach, the 'bonding agent' to the PVC only allows a bond to the 'new' and uncured frp ... the only other thing I could think of is to use epoxy BUT again you'd have to use that initial bonding agent.

Freeman Newton
- White Rock, B.C. Canada

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