GT9999 polyurethane composite adhesive (TDS)

The basic features

GT9999 as A/Bcomponent adhesive, A component by A variety of polyols, strengthening agent and filler, adhesive, appearance is yellowish red viscous fluid, B component for crude MDI, tan transparent viscous liquid.

Application field

The rubber is mainly used for honeycomb board, corrugated board products such as bonded, can also be used for all kinds of metal, wood, ceramic tile, polished tile, stone decorative composite binder. This product is easy to use, suitable for the direction of the coating, easy operation, high bonding strength, adhesive piece after curing completely hard compressive performance is good, curing shrinkage, corrosion resistance, ageing resistance.

Technical parameters of note: the following data measured under 20 to 25 ˚ C

 

Refers to the component B components after mixing

Yan color yellow to yellow red tan transparent gray

Density (g/cm3) 1.30 + / - 0.02 to 1.00 + 0.02 + / - 0.1 0.02

The state slightly thixotropic fluid fluid fluid

Mixing ratio (by weight) 4:1

After mixing

Apply (100 g) 50 ~ 60 min

Recommended operating time of 35 minutes (that is, from beginning to finished coating rubber mixing)

Construction environment humidity requirements of 15-35 degrees c, humidity 45%

Initial moisture to form 5 ~ 6 hours (25 ℃) / 60 minutes (65 ℃)

Completely curing (room temperature) 1 ~ 2 days / 24 hours (60 ℃ heat preservation after 60 minutes)

Shear strength (MPa) 13 MPa or greater (60 ℃ heat preservation after 60 minutes, 25 ℃ placed 3 days)

Honeycomb drum peel strength greater than 90 n

- range of applicable temperature 40 ℃ to 120 ℃

Environmental testing (voc) emissions meet GB18538 / TB3139

Flame retardant level S4 (DIN5510)

Note: the above mechanical properties test reference standard: GB/T 7124-1986 adhesive tensile shear strength determination method (metal to metal)

 

 

 

Should be used

Matters needing attention

1. With glue volume shoulds not be too much, in order to avoid accelerated curing caused by the reaction heat, shorten the period shall apply.

To absolutely anhydrous, 2. The adhesive bonding surface grinding can increase the bonding strength, but by bonding metal surface can increase bonding epoxy primer.

Pretreatment by bonding surface by coating surface should be dry, no fat, no dust or other contaminants. If the metal surface coated with primer or plastic surface discharge agent should be cleared; Glued surface after polishing treatment, in some special cases may also use epoxy primer or anodic oxidation, bonding strength will be increased significantly.

Construction and bonded GT9999 according to the quality than A: B = 4:1 each take A suitable amount of adhesive solution stirring mixing (A, B two kinds of adhesive solution color mixing for judgment), and then mix of colloid in required plate coated with scraper, leveling, smoothing, sizing amount to 0.35 0.5 KG per square metre.

After mixing GT9999 at room temperature, mixing adhesive solution the operational time of about 50 ~ 60 minutes, 25 ℃ initial curing time of about 6 to 7 hours. If the low temperature curing time should be extended. Also can use heating fast curing, general under the condition of 60 ℃, basic curing after 1 hour.

Cleaning not curing glue can be used special cleaning agent, such as acetone, after curing glue can only be removed with mechanical method.

Bao deposit

Is afraid of cold:

Save temperature: room temperature (s estion: 25 degrees or so), storage temperature is too high, in the glue mixing and reaction speed, operation time is short; Temperature too low viscosity thickening, rubber mixing and coating.

Have effective period: the original packaging under 12 months

Package is installed

Barrels pack: 24 kg (A portion), 6 kg (component B)

Packing also can according to customer's specific requirements

 

The information here is based on our actual and master the knowledge and experience to provide. By using different materials, as well as the change of working conditions is beyond the scope of our control, we strongly recommend intensive experiments and negotiate with our technical staff. Our company has the right to depending on the situation to modify the above content.