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Mastics

D90 PU MASTIC

Derby, D90, PU Mastic
Derby D90 PU MASTIC

Product Definition
Derby D90 PU mastic is a single component polyurethane-based sealant material which is cured by humidity of the air.

Properties
It is cured by humidity of the air. It can be painted after curing. Its temperature resistance is between -40°C and +90°C. (It is resistant to +120°C for a very short time)

The places of use
It is used as sealant in manufacture of car, van, yacht etc. in automotive sector, also in manufacture and montage of iron, sheet, aluminum, stainless steel, lead, copper, ceramic, glass, wood, plastic surfaces, air ducts, air conditioning, as sealant in rainwater gutters and joints of rainwater collecting pipes on the roofs, in joint works of metal sheet so as to reduce the vibration, in isolation of water, gas, air and dust permeable gaps.

Shelf life
Keep the packages at dry and cool ambient. Do not store in temperature higher than +25°C. Shelf life of unpacked packages is almost 12 months.

Application
It is applied in between +5°C and +35°C. Apply D90 on surface with an appropriate mastic gun. Adhesive thickness to be applied changes as per the type of materials to be adhered. After application, materials should be gathered within encrusting time. Until completion of curing, materials should be kept together mechanically. Curing time can change depending upon temperature, humidity and thickness of adhesive.
 

TECHNICIAL SPECIFICATIONS
Chemical Structure Polyurethane  
Density 1.4 g/cm³ (DIN 53479)
Viscosity Soft, Resistant to Flow  
Shore A Hardness 30 ± 5 (DIN 53505)
Breaking Strain > 450  (DIN 53504)
Tensile Force 1.50 N/mm²  (DIN 53504)
Tearing Strength 7 N/mm (DIN 53515)
Tensile Strength 1.80 N/mm² (DIN 53504)
Volume Change Under % 5  
Encrusting Time ~30 – 35 minutes  
Curing Time 3 mm 24 Hourste (+20°C, % 50 R.H.)  

Color: White, Grey, Black

PACKAGING PACKAGING
Product Name Amount per Package Package Weight/Kg Package Weight/Kg
D90 PU Mastic Cartridge 25 Pieces 8 Kg 300x260x250 mm
D90 PU Mastic Sausage 20 Pieces 12 Kg 355x235x205 mm