Sealant-for-Automobile-and-Shipbuilding-369

Jointas-369 Sealant for Automobile and Shipbuilding

Jointas-369 is a kind of new type PU hybrid system sealant with high modulus, single component and indoor temperature neutral solidification. The product adopts STP-E (α – …

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Product Description

Jointas-369 is a kind of new type PU hybrid system sealant with high modulus, single component and indoor temperature neutral solidification. The product adopts STP-E (α – silane blocking polyether) hybridization technology researched and developed by Wacker Chemie AG, which combines the excellent performance of both PU adhesive and silicone adhesive and is also safe, environmentally friendly with strong weather fastness. It is an ideal substitute of MS adhesive and silicone adhesive. JT-369 is mainly used in car windscreen bonding, high strength bonding between car bodies, ship window glass bonding, ship hull steel plate bonding and other structural bonding.

Product features:
. Safe and environmentally friendly — pass FDA authentication of US
. Excellent mechanical property — high strength and high elasticity
. Wide bonding range — no prime coat required for most base materials, which can also be used in the bonding of damp surface
. Good surface painting feasibility –the adhesive surface can be colored, polished and repaired without sticking dust
. Strong weather fastness — with good anti-UV, aging resistant and moisture resistant performance

Test items JT/T811-2011 Test Result
Appearance Black, white, gray, uniform sealant Black, white, gray, uniform sealant
Density, g/cm³ 1.2
Sagging degree(50º C) Vertical, mm ≤ 3 0
Horizontal No deformation No deformation
Surface drying time, h ≤ 3 0.5
Curing speed, mm/d 3-4
Tensile strength, MPa 6.0
Peel strength, N/mm ≥ 1.0 15
Damage area, % ≤ 20 0
Shore hardness A 50-70
Low temperature flexibility, º C -20 -40
Tolerable temperature, º C No crack, no significant color change
Extrusion, ml/min ≥ 80 233
Elongation at break, % 300
Mass loss rate, % ≤ 10 1.62

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