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Q:Please introduce the polyurethane adhesive.
A:
polyurethane adhesive is elastic sealing materials which are one component, moisture curing polyurethane foam filling, multi-purpose .Filling Polyurethane pre polymer and catalyzer and gas propellant in iron aerosol cans withstanding pressure. When constructing, Spray aerosol gel to the site of the construction by using matching sizing gun or manual nozzle.And complete molding, foaming, bonding and sealing processes in the short term.Cured foam elastomer of Polyurethane (PU) foam sealant has a lot of excellent performance,such as bond,waterproof, withstanding thermal expansion and contraction,heat insulation,sound insulation and even flame retardant,etc.
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Q:What are the key points of construction operation about polyurethane adhesive?
A:
1.process flow
Clean - ***ails of basic level surface to make glue, besmear to brush glue (cold) base oil - ***ails attached middle construction - the first time and the second time coating and coating to third time coating waterproof layer construction, waterproof layer a test to cover ACTS the role of surface, waterproof layer second acceptance test and waterproof layer.
2.Before construction of waterproof layer, should swept away the primary surface dust and other debris, and use wet cloth clean to brush one more time.
3.Besmear brushs the waterproof layer of the basic surface, can not have uneven, loose, empty drum, play sand, cracking and other defects, the moisture content is generally not more than 9%.
4. Besmear bottom glue (cold priming oil) :
1) Dispensing glue, first to add a and b material polyurethane xylene, ratio is 1:1. 5:2 (weight ratio) and mixed amount shall be ***ermined according to specific situation, unfavorable and overmuch.
2) Brush glue, according to the law on preparation, good glue mixture evenly with the roller surface at the grassroots level, besmear brushs the amount of 0.15-0.2 kg/m2, besmear after normal temperature season 4 h later, feel is not sticky, |
| Company: |
Hengshui Jianfeng Engineering Rubber Co.,LTD
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| Contact: |
Ms. lury wen |
| Address: |
Renmin road No.1657 |
| Postcode: |
053000 |
| Tel: |
86-0318-5106277 |
| Fax: |
86-0318-5106277 |
| E-mail: |
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