Cure It GRP, Руководство по установке

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Troubleshooting guide
Problems that occur while laying the roof
1) Failure of Cure It Roofing Resin to Harden
Description of problem - Laminate is still wet and resin is uncured with no other symptoms.
Possible cause Remedial action
• Cure It Roofing Resin may have been inadequately mixed. • Add Hardener to another batch of resin, ensuring that you use the
• Unsuitable hardener may have been used correct hardener. Always add extra hardener (doubling up if
(e.g. Extra slow or summer hardener used in winter.) necessary but not exceeding 4%) and roll vigorously into the
uncatalysed resin.
• Not enough hardener may have been used for the temperature. • Larger laminates or laminates that have been left for a long time
or contaminated by dirt, debris or water etc. may need replacing
completely.
• Always check the ambient temperature before mixing batches of
resin and consult the hardener chart for guidance if unsure.
2) Cure It Roofing Resin cures too fast
Description of problem - Cure It Roofing Resin cures before it can be properly applied and consolidated into the Reinforcement Mat.
Possible cause Remedial action
• Unsuitable hardener may have been used • If the ambient temperature is very hot extra slow hardener
(e.g. Winter hardener used in Summer.) • Reduce the size of the batches mixed.
• Weather may be too hot for Summer hardener. • Always ensure that you are laying the shortest possible runs across
a roof to give you adequate time to properly consolidate the laminate.
3) It begins to rain while laminating/topcoating
Description of problem - Roof has not yet cured and it begins to rain.
Possible cause Remedial action
N/A • STOP! Cover the roof with a non-woven polyethylene sheet and try
to ensure that non of the laminate gets any moisture onto it.
• Always ensure that you check the local weather forecast before you
start a roof.
• Always have enough polyethylene sheets with you to cover the roof.
Resin contaminated with water will not cure and require a re-skin
(see below.) Continue when the weather and surfaces are
completely dry. Check for water contamination (below).
4) Water contamination (white staining of laminate)
Description of problem - Water contaminated resin usually appears as a white staining or milkiness. The resin will not fully cure.
Possible cause Remedial action
• Cure It Roofing Resin has been contaminated by water, • Any white areas should be laminated over fully with a 450g/m
2
either from wet board or rain. laminate - ensure the area is completely dry before sanding with 40
grit sandpaper and wiping with acetone. Re laminate with 100mm
overlap of unaffected area.
5) Streaky laminate/topcoat
Description of problem - Laminate has partially cured, but has streaks of wet resin or lighter/darker colours running through it.
Possible cause Remedial action
• Cure It Roofing Resin may have been inadequately mixed. • Always ensure that topcoat is applied thinly (0.5mm.) This makes it
• Pigment may not have been mixed in thoroughly. possible to reapply another layer of either properly hardened or
• May be contaminated by water. thoroughly mixed, pigmented topcoat. If using pigment or hardener,
add more to the second coat.