McCoy Soudal FAQ

« Sealant FAQ

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Q.1:     What is Sealant?
Q.2:     Why sealant differs from adhesive?
Q.3:     What is silicone sealant?
Q.4:     What is RTV?
Q.5:     What is an acrylic sealant?
Q.6:     What is polyurethane sealant?
Q.7:     What is Gasket sealant?
Q.8:     What is an open time?
Q.9:     Which silicone should I use to seal PVC windows?
Q.10:   When do you need primer on a porous substrate?
Q.11:   What is the good joint dimension?
Q.12:   What is the cure time of a silicone?
Q.13:   What is the difference between a low and a high modulus sealant?
Q.14:   Does the outside environment affect silicone?
Q.15:   How do I store open cartridge of sealant?
Q.16:   What sealant to use for sealing air ducts?
Q.17:   What is a primer?
Q.18:   Should I prime before applying sealant?
Q.19:   What is the effect of temperature variation on application of a typical
             sealant?
Q.20:   What is the effect of humidity on a typical one component sealant?
Q.21:   What is an Accelerated Ageing Test?
Q.22:   What is an adhesion promoter?
Q.23:   What is Adhesive Tensile Strength?
Q.24:   What silicone should I use in a bathroom?
Q.25:     What is an ideal storage temperature?
Q.26:   What is an ideal application temperature?

« Adhesive FAQ

Expand All Questions   |   Collapse All Questions

Q.1:     What is an Adhesive?
Q.2:     Why sealant differs from adhesive?
Q.3:     What is an ideal storage temperature?
Q.4:     What is an ideal application temperature?
Q.5:     What is an open time?
Q.6:     What is an Accelerated Ageing Test?
Q.7:     What is an adhesion promoter?
Q.8:     What is Adhesive Tensile Strength?

« Foam FAQ

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Q.1:     What is an ideal storage temperature?
Q.2:     What is an ideal application temperature?
Q.3:     Is it necessary to moisten the surface before using foam?
Q.4:     Is foam resistant to water?
Q.5:     Does PU-foam provide good adhesion to all building surfaces?
Q.6:     What are McCoy Soudal PU-foams used for?
Q.7:     Is PU-foam UV resistant?
Q.8:     What are the health and safety recommendations for using foam?
Q.9:     Why should I store a can with valve pointed upwards?
Q.10:   What is the expansion of PU foam?
Q.11:   How should I store an opened can of gun foam?
Q.12:   What sort of paint should I use for covering urethane foam?
Q.13:   Is there a negative effect on the foam if can is not shaken thoroughly
             prior to use?
Q.15:   Does the canister need to be shaken again during use?
Q.16:   How does the foam get the right amount of moisture?
Q.17:   What happens when there is insufficient moisture on the surfaces or in
             the surrounding environment and no water has been sprayed onto the
             foam?
Q.18:   Some polyurethane foam was spilt on unprotected window frames
             during application. Despite removing the spillage with cleaning fluid,
             the uPVC frame started to turn brown several months later - why was
             this?
Q.19:   What is the scientific basis of one-component polyurethane foam?
Q.20:   Does the foam develop and exert pressure during expansion & curing?
Q.21:   Is there any way to accelerate the curing process?
Q.22:   How can foam spots be removed?
Q.23:   Is cured foam subject to ageing?
Q.24:   What should I do with excess foam such as that round doors and
             windows?
Q.25:   Can polyurethane foam be used to fill profiles such as aluminium, steel
             or uPVC section?
Q.26:   Can gaps between polystyrene insulation panels be filled with one -
             component polyurethane?
Q.27:   Is it OK to leave half-empty canisters attached to applicator guns?
Q.28:   Why does foam spurt out sideways when the canister is re-used?
Q.29:   Is it necessary to remove excess foam from the adapter, or can I simply
             insert the next canister?
Q.30:   How long can a partially used container be left attached to a gun?
Q.31:   Are there any special conditions to be observed during polyurethane
             foam canister storage?
Q.32:   Can a polyurethane cylinder which has been properly stored and
             temperature-maintained explode?
Q.33:   What is the problem when no foam is released when a can is re-used?
Q.34:   What happens when polyurethane canisters are stored for a protracted
             period in cold conditions?
Q.35:   Are there any special safety requirements for storing polyurethane
             foam canisters?
Q.36:   Is it true that polyurethane foam in a canister has a limited shelf life?
Q.37:   Is the shelf life of PU foam influenced by external conditions?
Q.38:   Does the propellant gas have an effect on the ozone layer?
Q.39:   How does the viscosity of the polyurethane influence the output of
             released foam?
Q.40:   What is the recommended optimum temperature for using polyurethane
             foam?
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