[Purification warehouse board composite glue] PU composite glue_Stone insulation integrated board composite glue
Purification warehouse board composite glue: Pressurization after the glue is applied is also very important. Weigu Chemical's purification warehouse board composite glue Customers have encountered many problems due to improper operation in the pressurization process. Weigu Chemical reminds customers that polyurethane glue should be pressurized for more than 4 hours in summer and no less than 6 hours in winter.
The demarcation point of construction responsibilities with different types of materials (especially gluing, drainage type) and the order of operations must be clear. Regarding windows, because it is directly related to whether there will be water leakage, the edge closing at the intersection is very important. Therefore, when deciding on the sandwich panel factory profile, the profile shape of the window must also be determined. In principle, in order to ensure the required size for the secondary side gluing, the same window frame is used
Two-component polyurethane glue
Product introduction:
This product is an anhydrous PU adhesive with high bonding strength, excellent stability, and excellent anti-aging and water resistance. It is suitable for bonding color steel plates, polystyrene, rock wool, and paper honeycombs. Purification warehouse board composite glue is widely used in the construction industry. The product fully complies with EU ROHS, GB/T-18583-2008 and other harmful test standards.
Purification warehouse board composite glue product characteristics:
Purifying the database composite glue polymer type Pantol alcohol polymer
Gray-white viscous liquid
Total solid content (%) ≥99%
Viscosity (25℃) between 20,000 and 26,000
PH value 4.0-7.0
Quite low film forming temperature ℃ -15℃
Curing agent:
Appearance Brown liquid
Viscosity (25℃) ≥ greater than or equal to 200
How to use purification warehouse board composite glue:
(1) Painting process flow: surface pretreatment of the workpiece to be painted → glue preparation → painting → gluing → curing
Use detergent to clean the surface to be bonded to make it free of rust and oil stains. If this step is not handled properly, the adhesion of the foam glue will be affected.
(2) The main agent ratio of this product: curing agent = 100: 20 ( Weight ratio) is a very good ratio. Less curing agent will affect the glue curing time. If there is too much curing agent, the colloid will easily become brittle, and the operation time will be shortened, which will cause quality risks. The glue must be mixed evenly because the curing agent tends to flow to the bottom when mixed.
(3) The coating amount of composite glue for purification warehouse board is 280-300g/m2 on one side (Note: One side of the aluminum honeycomb composite panel should not be less than 500g/m2). The effect of applying glue to the upper limit is quite good. In order to ensure the bonding strength, please apply the glue evenly on the surface of the sticky object. It is better to scrape with a toothed plastic scraper. Because of the high viscosity of the glue, you cannot use a brush to apply the glue. When using, please apply the glue evenly on the surface of the bonded object. The coating should not be too thick, and the exposure time of the colloid should not be too long.
(4) The bonded plates must be pressurized within 45 minutes. Do not wait for the glued surface to dry before applying pressure, as this may cause the glue to open.
gluing can be done by cold pressing or hot pressing. The minimum time for cold pressing is 3~4 hours; the minimum time for hot pressing is 15~30 minutes; the adhesion time is more than 10h, and the baking temperature is preferably 190~220C°.
(5) Seal the lid with the unused main compound glue of the purification library board , to avoid solidification and crusting. Tools can be cleaned with ethyl acetate solvent or acetone. This product needs to be stored in a dry, ventilated and sealed environment, and do not come into contact with water.
Warning: The two processes of gluing and applying pressure must be completed within the surface drying time, usually within 20 minutes
Product safety:
This product is a polyol polymer, odorless, slightly irritating to the skin and mucous membranes. Purification should be avoided The warehouse board composite glue will be in contact with the skin for a long time, so rinse it with water after construction. If accidentally swallowed, please seek medical treatment promptly. This product is non-flammable.
Storage conditions:
Products should be stored in an airtight container to prevent sunlight, rain, freezing and high temperatures. The recommended normal storage temperature is 5-25°C. The shelf life of the purified warehouse board composite glue is 3 months.
Sound Ming:
The above parameters are from our company's laboratory. Since there are many variation factors in the operation process of each manufacturer, it is recommended that your company first try it out or have the technical department test it to determine whether this product is suitable for your proposed process and use before you can apply the purification library board composite glue in batches. Otherwise, our company will not do this. No liability arising therefrom is assumed.
Purification warehouse board composite glue: The pressurization project of polyurethane purification warehouse board compound glue must be Complete the pressurization procedure within 40 minutes. Make sure the pressure on each board is uniform, otherwise there will be a serious problem of glue opening. Weigu Chemical Purification Library Board Composite Adhesive tells you that you should make sure the adhesive has been completely cured before releasing the pressure.
