SIKAMELT 677

SIKAMELT 677
SikaMelt® 677 490581 9677 C182 DR 2000KG

SikaMelt®-677 - Multi-purpose polyurethane hot melt for sandwich panel bonding

PRODUCT BENEFITS

• Very long open time
• High green strength
• IMO approved
• Broad adhesion range
• Very good heat resistance after moisture curing
• Very good aging resistance

Usage

SikaMelt®-677 is suitable for permanent bonding of polar plastics as well as for wood, foam, textiles, painted and primed steel. Non polar plastics like PP and PE can be bonded after proper physical pre-treatment. It is used for interior trim lamination as well as for Sandwich Panel applications. This product is suitable for professional experienced users only. Test with actual substrates and conditions have to be performed to ensure adhesion and material compatibility.

Packaging

• Pail 20 kg
• Bag (cardboard) 22 kg
• Drum 200 kg

Chemical base	Polyurethane
Color (CQP001-1)	White - beige, opaque
Cure mechanism	Moisture curing
Density (uncured)	1.10 kg/l (9.2 lb/gal)
Viscosity (by Brookfield) (130 °C (266 °F))	11 000 mPa·s
Softening temperature (CQP538-5)	72 °C (162 °F)
Application temperature (short term max. 1h)	120 – 140 °C (248 – 284 °F)
Open time (CQP559-1)	Long
Curing time (CQP558-1)	7 h
Green strength (CQP557-1) (after 30 min)	0.3 MPa (45 psi)
Tensile strength (CQP036-3)	9 MPa (1300 psi)
Shelf life	9 months