BORDEN RESORCINOL ADHESIVESResorcinol adhesives have undoubtedly become established as reliable construction adhesives
since they combine ease of use with the advantages of high strength, durability and long storage
life. Borden Resorcinol adhesives are liquid resins in alcohol-water solution, and are used in
conjunction with powder or liquid hardeners which must be thoroughly mixed into the resin
before use. Technical Information on individual products is available in and should be read in
conjunction with this bulletin.
Because of their outstanding durability under conditions of severe exposure these glues should
be used for all work where the maximum resistance to weathering is required; they are
particularly recommended for constructional laminating, for marine craft
(stems, keels, frames,
knees, masts etc), for laminated roof members (such as sports halls etc), for arches for bridgework,
and for concrete formers. In the marine field they are also used as a bonding medium in the multi-skin method of construction (ie double or treble skin) and for edge-glued planking and
decking which avoids the need for caulking and a seam filler. Being naturally gap-filling these
glues are also ideal for use in the cold-moulded method of boat construction.
USE OF ADDITIONAL FILLERSWhilst Borden Resorcinol adhesives are gap filling it may, in certain circumstances, be
beneficial and necessary to add a percentage of extra filler in order to thicken the glue mix and
so prevent a `starved joint'. For example when testing to the gap-filling section of BS1204, a
10% addition helps to retain the glue in the 1.25 mm gap (under no circumstances should extra
filler be used in an endeavour to fill gaps larger than 1.25 mm
. The filler recommended for the
purpose is a coconut shell flour available from BORDEN CHEMICAL UK LTD, which can be
used in proportions from 10% to 12% by weight depending on the work being carried out. The
addition of the filler has no adverse affect on the strength and durability of the glue line.