Tonsan® TS856 is a kind of 2K PU structural adhesive, it is mainly used for composite materials bonding and can be cured at room temperature or can be accelerated with heating, after curing it has excellent adhesion, impact resistance, water resistance, electric isolation, and corrosion resistance properties.

Chemical Family: Polyurethanes (PU)

Product Type: 2K (2 component) Adhesive, Reactive Adhesive, Structural Adhesive

Application Area: Automotive Exteriors

Compatible Substrates & Surfaces: Acrylonitrile Butadiene Styrene (ABS), Bulk Moulding Compound (BMC), Composites, Fibre-reinforced Plastic (FRP), Long Glass Fiber Reinforced Polypropylene, Metal, Polyethylene Terephthalate (PET), Polypropylene (PP), RTM Material, Sheet Moulding Compound (SMC)

Features: Corrosion Resistant, Electrical Corrosion Resistant, Electrical Insulation Properties, Electrically Insulating, Excellent Toughness, Excellent Water Resistance, Fast Curing, Good Adhesion, High Impact Resistance, High Strength, Impact Resistance, Improved Toughness, Room Temperature Curing, Water Resistant

Technical Data Sheet

Enhanced TDS

Identification & Functionality

Chemical Family

Features & Benefits

Product Highlights
  • Suitable for kinds of composites bonding
  • Toughness and high strength
  • Fast curing speed

Applications & Uses

Application Area
Cure Method
Application Information
  1. Surfaces must be clean, dry and free from all traces of grease, oil and dust.
  2. Part A and B are mixed homogeneous with a static mixer before applying.

Note: the mixed adhesive must be applied during pot life.

Properties

Component A
ValueUnitsTest Method / Conditions
Viscosityapprox. 70,000mPa.sGB/T 2794
Density1.32 - 1.42g.ml⁻¹-
Component B
ValueUnitsTest Method / Conditions
Viscosityapprox. 40,000mPa.sGB/T 2794
Density1.32 - 1.42g.ml⁻¹-
Technical Data
ValueUnitsTest Method / Conditions
Mixed Ratio (By Volume)4:1--
Mixed Ratio (By Weight)4:1--
Cured Properties
ValueUnitsTest Method / Conditions
Open Time (at 33 - 37°C)approx. 5Minutes-
Green Strength (at 90°C, 80s)approx. 1.0MPa-
Hardness60 - 70Shore AGB/T 531
Tensile Strengthmin. 2.5MPaGB/T 528
Elongationmin. 200%GB/T 528
Lap Shear Strengthmin. 2.5MPaGB/T 7124
Temperature Properties
ValueUnitsTest Method / Conditions
Service Temperature Range- 40 to 100°C-

Technical Details & Test Data

Curing Profile

TS856 can be cured at room temperature or can be accelerated with heating.

Packaging & Availability

Packaging Type
Packaging Information
  • 4:1 400ml cartridge;
  • 5 gallon pail and 55 gallon pail

Storage & Handling

Shelf Life
6 months
Storage Condition
  1. Part A and B are sensitive to moisture. It should be stored in tightly closed containers.
  2. Part A and B must be stored and applied between 15 - 30°C. During delivery both components can be exposed down to 0°C for a maximum of 5 days. Do not use crystallized or inhomogeneous components.
  3. Shelf life at 15-30°C for 6 months.