1. Single part polyurethane sealant
2. High modulus & tensile strength
3. Weatherpoof & waterproof
JOINFLEX 128 Container Polyurethane Sealant
JOINFLEX 128 Container PU Sealant is single part polyurethane based, high/middle modulus sealant, which cures on exposure to atmospheric moisture to form elastomeric mastic.
JOINFLEX 126 Bodywork PU Sealant has high adhesion strength, good elasticity, aging resistant, vibration exhaustion resistant and multi coatings paintable properties.
JOINFLEX 128 Container PU Sealant is highly elastic & resilient, weather-durable, non sagging, watertight with excellent adhesion to almost all building construction materials.
Non-corrosion to substrates;
Thixotropic ,no sag.
Little Volatile Odor
Excellent adhesion on glass and metal surface
Good weathering resistance.
Can be painted over with many water, solvent and rubber based paints (preliminary tests recommended).
Conforms to the most stringent sealant standards
As Supplied – tested at 23°C±2°C, RH50%±5%:
Aspect: Thixotropic Paste
Gravity, g/cm3 1.25~1.35
Tack Free Time, min. 30~60
Extrudability, ml/min. ≥80
Sag/Slump, mm ≤1
Curing depth, mm/24hr 3
Service Temp, °C -50 ~+90 (continuous)
+120 short time (up to 8 hrs)
Application Temp, °C +5~+45
As Cured – tested at 23°C±2°C, RH50%±5%
Hardness, 24H, Shore A ≥20
Hardness, 7d, Shore A ≥45
Depth of curing, 24H, mm ≥3
Depth of curing, 7d, mm ≥6
Recovery of elastic, % ≥85
Tensile modulus(MAX), MPa ≥2.0
Modulus at 100% elongation, MPa ≥0.9
Peel strength, N/mm ≥7.5
Shear strength, MPa ≥1.5
Elongation at break, % ≥400
Solid content, % ≥95
Resistance to dilute acids and bases General
Water and salt spray resistance Good
Compatibility with paints Yes
JOINFLEX 128 Container PU Sealant is used for sealing bus side board, front board, rear board and internal decorations, and can be used in container industry, steel structures and refrigeration stores.
JOINFLEX 128 Container PU Sealant is special for apply to metal containers, air conditioning , plastic products and board Seals.
JOINFLEX 128 Container PU Sealant is multipurpose to connect to seal completely the gum, widely used in mainly fields such vehicles, shipping contains, air conditions, mechanism and so on.
12 months in unopened packaging in a cool and dry storage place at temperatures between +5°C and 25°C.
Grey, black and white.
Also we can produce the sealant with special color upon customers' requirement.
Sausage: 310ml, 400ml, 600ml