21
Troubleshooting guide
Problems that occur while laying the roof
6) Failure of topcoat to cure
Description of problem - Topcoat is still wet and has not cured.
Possible cause
Remedial action
• Topcoat has been used with unsuitable hardener
• After water has evaporated apply another very thin layer of topcoat,
(i.e. Summer hardener in winter.)
ensuring that it is vigorously and thoroughly rolled in to the
• Topcoat has not been sufficiently mixed or not enough hardener has uncured layer.
been mixed in.
• Always add more hardener to the second batch, up to double
• Topcoat might be contaminated by water.
if necessary.
7) Entrapment of debris in laminate
Description of problem - Debris entrapped in the laminate, possibly poking through the laminate, holes in laminate.
Possible cause
Remedial action
N/A
• This is usually seen while consolidating. The debris needs to be
removed and patched over. This can be done while the laminate is
still wet and then patched up with a new section of laminate.
• When the laminate has cured, the surface can be lightly rubbed with
a coarse sand-paper. This will highlight any imperfections. The
affected area must then be patched with a new laminate.
If the debris is causing a significant lump it should be ground down
with an angle grinder first.
8) Spillages
Description of problem - Spillage/resin spray.
Possible cause
Remedial action
N/A • Resins stick by mechanical adhesion; they soak into a surface and
cure. It is essential to clean the resin off the surface before it cures.
• The solvent for uncured resin is acetone. This can be used to
remove resin from most surfaces including clothing
(WARNING: acetone is extremely flammable.)
• If used to clean paintwork or coloured fabrics it may discolour or
remove paint or dye from the surface.
• Resins will generally not adhere to anything that has a shiny
surface. If resin has cured onto a surface such as glass, metal or
paintwork, it may be flicked off using a sharp edge or by vigorously
rubbing with a coarse cloth. The cleaned surface may then be buffed
with wax polish or a cutting compound.
• With larger spillages (e.g. driveways or walls,) a hot pressure
washer is the best choice, but high pressures will be required and
strong detergents are usually necessary. Be aware that strong
detergents and hot pressure washes can damage surface.
• Preventative measures are essential to avoid spillages.
• Always mask off adjacent areas where fine spray droplets, caused
by the consolidator roller, may fall. Polythene sheeting is the best
material for masking.
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