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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Old glass fibre tanks
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<blockquote data-quote="vibrac" data-source="post: 9521" data-attributes="member: 60"><p>Found this in an FAQ corner of east coast (UK) fiberglass site may be of interest</p><p> </p><p> </p><p>Dear sirs, could you please be able to provide me with a good technical reason why general lay-up resin is not suitable for petrol tank manufacture. </p><p>General purpose grades have never been suitable for storage of petrol as they do not have sufficient resistance to oils, diesel , petrol and other similar materials. Before un leaded petrol became the norm you could store it in an iso resin like our Crystic 491PA - this was actually sold by a company called Petseal for sealing rusty motorbike petrol tanks. Un leaded fuel currently used contains methanol which has made it more aggressive towards GRP so we now only recommend highly crosslinked iso resins like our Crystic 199 - this also needs post curing to develop sufficient resistance.</p><p> </p><p>(Post curing is heating the matting after laying up)</p><p> </p><p>Tim (also shows petseal markup price-I am told new petseal uses the new resin)</p></blockquote><p></p>
[QUOTE="vibrac, post: 9521, member: 60"] Found this in an FAQ corner of east coast (UK) fiberglass site may be of interest Dear sirs, could you please be able to provide me with a good technical reason why general lay-up resin is not suitable for petrol tank manufacture. General purpose grades have never been suitable for storage of petrol as they do not have sufficient resistance to oils, diesel , petrol and other similar materials. Before un leaded petrol became the norm you could store it in an iso resin like our Crystic 491PA - this was actually sold by a company called Petseal for sealing rusty motorbike petrol tanks. Un leaded fuel currently used contains methanol which has made it more aggressive towards GRP so we now only recommend highly crosslinked iso resins like our Crystic 199 - this also needs post curing to develop sufficient resistance. (Post curing is heating the matting after laying up) Tim (also shows petseal markup price-I am told new petseal uses the new resin) [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Old glass fibre tanks
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