Introduction to Techsil's Hotmelt Adhesive and Glue Gun Range

Industrial Suppliers of Sealants and Adhesives

ADDING VALUE TO INDUSTRY

Hot Melt Adhesives



What is Hot Melt ?• Hot melt glues are thermoplastic polymer based

materials in solid form which contain no solvents or water and are non-hazardous, FDA approved and leave no risk of mould or odours in finished product.

• In use, they are heated and applied molten to one surface of the parts to be glued, when the surfaces are pressed together the hot melt quickly cools to form an almost instant bond.

• Hot melt Adhesives can be formulated using several different base polymers. The choice of polymer affects adhesion, temperature resistance, chemical resistance and cost.



Formulations• Ethylene Vinyl Acetate (EVA)

A commonly used polymer suitable for both packaging and product assembly formulations. It is economical and effective at service temperatures from -30°C to 80°C.

• Pressure Sensitive Hot Melt Adhesives (HMPSA) Unique because they do not solidify to form a solid material, they remain permanently tacky and have the ability to wet-out substrates on contact. The bonds are formed by bringing the PSA adhesive in contact with the substrate and applying pressure.

• Polyamide (PA)Polymer used to formulate adhesives with better resistance to chemicals and temperature extremes, typically -60°C to 130°C

• Polypropylene (PP)Polymer used for adhesives with specific adhesion properties such as delayed setting time and often used for spray formulations. Effective at service temperatures from -30°C to 110°C

• Polyurethane (PUR)Polyurethane Reactive Hot melt initially sets like a conventional hot melt by losing heat and solidifying. Following this, the PUR absorbs a small amount of moisture from the surrounding materials or atmosphere and cross links. This is a permanent chemical change that takes several days which increases both heat and chemical resistance. Since a small amount of moisture is required for this reaction to take place it is better if at least one substrate is porous.



Tecbond Shaped• Shaped (sticks & slugs)

– 12mm– 15mm– 43mm– Cartridge

• Bulk– Pellets (beads)– Blocks

http://www.gluegunsdirect.com/index.php?module=product&idProduct=166



Tecbond Selection Guide Tecbond Reference Description 12mm 15mm 43mm CT Bulk

5 High delivery, low viscosity, long open time. Product assembly adhesive. ● ● ● ●14 High delivery, vary fast setting packaging adhesive. ● ● ●

1942 Product assembly adhesive for wood and many plastics. ● ● ●1X Low viscosity, wood working & packaging adhesive. Medium open time. ● ●

213 Economical, general purpose adhesive. ● ● ●214 Economical, fast setting, packaging adhesive. ● ● ●23 Medium viscosity multipurpose adhesive. ● ● ●

232 Economical, clear, general purpose adhesive. ● ● ●232 Coloured Coloured, medium open time, general purpose adhesive. Brown, Green, White, Black, Blue, Gold, Silver, Red, Yellow. ●

232 Glitter Multicolour, Red, Green, Silver, Gold. ●240 High delivery, long open time, multipurpose, clear adhesive. ● ● ●246 Clear and black versions, high performance, gap filling, difficult surfaces, dent pulling. ●260 High performance, long open time, tough, flexible adhesive. ● ● ●265 Long open time product assembly adhesive for smooth and shiny surfaces. ●267 High heat resistant, medium open time, product assembly adhesive. ●2169 Peelable adhesive, low tack, non-migrating, CD & credit card attachment, glue dots. ● ●342 High viscosity, fast setting, white adhesive. ● ●410 Pallet stabilisation spray adhesive ●420 General purpose spray adhesive. ●425 High delivery, high performance, spray adhesive. ●430 High performance, long open time spray adhesive. ●4741 Full pressure sensitive, very aggressive, multipurpose, paper & plastic materials. ● ●7718 Coloured, low viscosity, potting, encapsulation & knot filling / wood repair polyamide adhesive. ● ●7784 High temperature resistant multipurpose polyamide adhesive. ● ● ●7785 High temperature & chemical resistant multipurpose polyamide adhesive. ● ● ●9010 Reactive hotmelt. Heat & chemical resistant bonds, rigid bond, once set does not reactivate with heat. ●



Hot Melt Guns

Tec 250 Tec 810 -12 Tec 810 - 15

Tec 3150 (43mm) Tec 6100 (43mm) pneumatic Tec 7300 (43mm) Spray pneumatic

Tec 1050 Cartridge

http://www.hotmeltgluegunsticks.co.uk/gluegun250hm-mi.html

http://www.hotmeltgluegunsticks.co.uk/gluegun810-12hm-mi.html



Typical Applications

• Packaging• Point of Sale

Displays• Case manufacture• Foam converting• Sample Books• Blinds• Bookbinding• Tile Displays• Automotive Trim

• Upholstery• Furniture• Badges & Emblems• Electronics• Plastic parts assembly• Carpets• Positioning• Foundry Castings



The Foundry Industry

Foundry Tec Range301501601701

Spray Applications

Packaging Foam

Mattress Soft Top



Hot Melt Adhesives

Introduction to Techsil's Hotmelt Adhesive and Glue Gun Range

Engineering

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