This, the strongest of the Weicon adhesive sprays, is for permanent and highly durable bonding work, especially when the job involves raw, somewhat uneven surfaces. This Weicon adhesive spray, extra strong, is designed for gluing thick textiles like felt, artificial leather or carpeting. It can also be used on soft foams (but NOT rigid foams like polystyrene foam – it eats out craters!), rubber (also foam rubber), leather as well as wood and metal. Its compatibility with individual plastics, especially those that come in thin sheets, should be tested before proceeding further.
The coat resulting from spraying this adhesive will be somewhat thicker than “normal” spray adhesives because it foams up when applied. But this is also the reason that this adhesive works so well on uneven surfaces. Note that its spray pattern is somewhat more spotty and less even than hairspray or PHOTOMOUNT.
By turning the spray head you can continuously adjust the amount of adhesive being released (small, medium, large amounts). The spray comes out of the nozzle in a fan shape and when landing forms a 15 mm thick linear pattern. This makes it easy to quickly and accurately apply it to larger surface areas.
In comparison to the adhesive sprays from 3M, the Weicon sprays are less expensive and have a longer open time (working time), which for many jobs can be a real advantage while for others it might be a negative.
Applications: When gluing large areas it is often difficult
to evenly distribute the adhesive everywhere before it has already begun to dry.
This problem can be gotten around by using a spray glue. When evenly and thinly
sprayed, it will form a coat of adhesive which will not bleed through or make
paper wavy. Spray glue can be used on numerous materials: paper and cardboard, a
wide variety of plastics and plastic foams (glued to themselves or on wood and
metal). Typical areas of use for spray glue include mounting drawings, placards,
photographs, maps and the like on solid backgrounds. Examples of substrates
abound: KAPA boards, honeycomb board, thick cardboards, basic corrugated boards,
Forex boards, etc.
Treatment: When mounting on smaller surfaces it is not the
substrate that receives the even coat of glue but rather the object that is to
be mounted. After the glue has been applied, mounting should begin on one of the
short sides and the rest carefully stretched out and pressed into place. This
pressing should always be done from the middle outwards as much as possible so
as to avoid small bubbles forming. After that is completed, a PRESSURE ROLLER or
a FELT SQUEEGEE-TYPE APPLICATOR should be employed for further flattening
purposes. If, for example, you plan to glue-mount a large number of ink-jet
prints on presentation boards, it is helpful to have many separate underlayers
on hand because as you spray the backside of a print there will always be some
overspray on the underlayer upon which you will then not be able to lay the next