Plexus® PU2105 Two-part Polyurethane Adhesive

Product code: PU2105
Manufacturer: ITW Performance Polymers
Package size:
Shelf Life: Bulk Containers, unopened: 18 months; Cartridges, unopened: 10 months

Plexus® PU2105 is a high strength two-part structural polyurethane adhesive that forms rigid connections with a variety of substrates. It is designed for bonding composites, (FRP, epoxy, etc.) thermoplastics, metals, wood, concrete, and cement. Combined at a 1:1 ratio, PU2015 has a working time of 3 to 5 minutes. The product has low exotherm and no odor. This product offers a combination of high strength and stiffness as well as the ability to bond a wide range of materials. Plexus PU2105 is supplied in ready-to-use and 400-ml cartridges, or 48-gallon (182-liter) drums to be dispensed as a non-sagging gel.

Key Features

Excellent environmental resistance
Excellent gap filling and thixotropic
Easy to use 1:1 ratio
Low print Low exotherm and low shrink

Key Substrates

Composites DCPD, FRP, Gelcoat, Phenolics, Epoxy Based Composites, RIM
Coated metals Powder coated or E-coated Metals
Thermoplastics PC-PET Blend, ASA Blends, PMMA, Noryl
Raw metals Aluminum, Stainless Steel, Raw Steel, etc.

Typical Properties*
Mix ratio by weight	100:159
Mix ratio by volume	1:1
Adhesive Part A density, g/ml	1.23
Hardener Part B density, g/ml	1.95
Mixed density, g/ml	1.57
Adhesive Part A viscosity(92#, 20rpm, 25℃), cP	74,000
Adhesive Part B viscosity(92#, 20rpm, 25℃), cP	68,000
Working time(25℃), mins	3~4
Handling time, (50 psi) / 0.35 to 1 MPa (20°C), Mins.	25-30
Curing time to reach 500 psi / 3.5 MPa (20°C), Hrs.	115
Time to reach Max Exo Temp. (10 gm, 75F/24C), Mins.	6.5
Typical Exo. Peak Temp. (10 gm, 75F/24C), F/C	140 / 60
Lap Shear on Al 6061, PSI / MPa (0.012 in./0.3 mm)	1,450 / 10.0 (CF)
Tensile strength, PSI / MPa	4,060 / 28
Elongation at break, %	5
VOC, % by wt.	0
Hardness, Shore D / A	70 / NA
Shelf Life, months (stored between 50 to 75°F (10 to 24℃)
– Bulk Containers, unopened	18
– Cartridges, unopened	10