Nanjing Skybamboo Science & Technology Industry Co.,Ltd, China
www.skybamboo.com
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Aqueous Polyurethane Adhesive for Wood
The product with good resistance to water, solvant and heat, excellent mechanical properties, has wide applied areas in the manufacture of various wood works.
Usages
1. Bonding of wood, hard wood and soft wood, suitable for the manufacture
of glued laminated wood, high-quality furnitures and ordinary wood work.
2. Bonding of wood and cement, plastics, metal, suitable for interior
decoration of bultings and surface decoration of wood-based panels.
Feature
1. Excellent bond strength
2. Water based, thus safe and uncontaminated
3. Free from formaldehyde and phenol
4. Approximately neutral
5. Curing at room temperature
6. High initial bond strength
7. Good gluing property at lower temperature
Physical Properties
| Item | Base Resin | Curing Agent |
| SR-100A | SR-100B | |
| Appearance | white viscous liquid | brownish black liquid |
| Solids content,% | 58+-3 | >=99 |
| Viscosity(25oC),P | 100+-30;70+-30 | |
| PH value | 7+-1 |
Bonding Properties
| Impregnation delamination,% | <10 | ||
| Compressive shear strength | strengtg(MPa) | wood failure(%) | |
| Manchurian ash (hard wood) | >=10 | >=60 | |
| Spruse (soft wood) | >=6 | >=65 | |
Instructions for Use
| 1.Condition of lamina | |||
| Thickness deviation | <0.1mm | ||
| Wood moisture | 10+-3% | ||
| 2.Resin versus curing agent weight ratio | SR-100A/SR-100B=100/15-20 | ||
| 3. | Glue spread | 250-350g/m2 | |
| Assembly time | 30min | ||
| 4.Pressing | |||
| Pressure | soft wood | 0.69-0.98MPa (7-10kg/cm2) | |
| hard wood | 1.18-1.47MPa (12-15kg/cm2) | ||
| Temperature | room temperature | ||
| Press time | 30-60min | ||
| For lower temperatures, press time should be prolonged appropriately. | |||
| 5.Ageing time | 3days above 20oC | ||
Points for Attention
1. Store in tightly closed containers in dry, well ventilated area and
protect from frost.
2. Storage stability: 6 months at 20oC in well closed packaging.
Copyright © Skybamboo 1999-2007.All rights reserved. Revised: 2007-02-22.