PEARLBOND™ 700 EXP is a linear, polyester-based polyurethane, supplied in form of small beige granules, which combines an ultra-fast crystallization rate with an ultra-high thermoplasticity level. It is used for Hot Melt Adhesives.

APPLICATIONS
PEARLBOND™ 700 EXP can be used for making heat-sealable fabrics (thermobonding films, webs…), obtained by coating processes such as:

• Hot Melt Coating system: Rotogravure hot melt printing. The product is melted in an extruder and then pumped into a deposit in front of the engraved roller.

• Powder Coating system: Scattering or dot-coating (powder or paste). The product is previously ground into powder, by cryogenic grinding. The particle size of the powder will depend on the application technique to be used.

PEARLBOND™ 700 EXP is suitable for use in extrusion and powder applications where the following features are of high value to the customer: high speed process at low viscosity and high bonding strength in seconds. Superb chemical resistance.
It can also be combined with more rigid resins or reactive systems to increase the flexibility and elastomeric behaviour (compounds) decreasing their Tg.