What is PU glue and what is it used for?

PU glue is a polyurethane glue, which is a two-component adhesive formed by pre-polymerization of resin and emulsion. It is mainly suitable for bonding wood, aluminum plate, colored steel plate and metal and polystyrene foam. . It has good bonding strength, does not contain organic solvents, and has excellent heat resistance. This product can be cured at room temperature or heated. After all, it is the plastic that we often talk about in our lives.
There is also a PU glue called water-based PU glue. The water-based PU glue is an anionic-based water-based polyurethane dispersion. It is a heat-activated adhesive and can be used in shoemaking, furniture, automobiles, construction industries, etc. field.
Water-based PU glue has a wide range of uses. First of all, it is mainly used in the footwear industry:
(1) With the appropriate surface treatment agent, water-based PU glue can basically be applied to most shoe materials;
(2) Water-based products have obvious advantages for porous fabrics or materials that are easily eroded by solvents;
(3) However, materials with heavy oil content and high tension are not suitable for the use of water-based PU adhesives at present.
(4) Adhesion between various shoe materials such as PU, PVC, EVA, TPR, rubber, mesh, leather, etc.

Another kind of PU glue is PU injection moulding glue. PU injection moulding glue is an elastomer. The iron end cap and rubber sealing ring of the air filter element are omitted by casting, and it is the most ideal product for the production of pull-type air filters.
Physical and chemical indicators and performance:
Component A:
Appearance: orange-red uniform liquid (other colors are available upon request)
Density: 1.02g/ml Viscosity: 800-1000MPa.S (25℃)
Component B:
Appearance: brownish yellow liquid
Density: 1.02g/ml Viscosity: 25-50MPa.S(25℃)
⒈ Before injecting glue into the glue injection machine, the A glue bucket (usually 200KG/drum) must be fully rolled to make the A glue even.
⒉ The ratio of AB glue is 100:25 (4:1).
⒊ It is advisable to control the temperature of the material at 24℃-28℃, and it can be started and run.
⒋ The mold must be wiped with release agent before use (note: the new plastic mold can be wiped free)
⒌ If the reaction of materials A and B is not sufficient, measure the ratio of materials A and B.
⒍ A and B materials must be sealed and stored.

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Email: sales@puglue.com    2900326926@qq.com    info@puglue.com