Adhesives

Gairesa designs and manufactures durable alternatives to mechanical anchoring. Through insoluble and infusible chemical joints, structural to flexible adhesions are possible.


Multipurpose epoxy adhesives, tough polyurethane adhesives or fast methacrylate adhesives lead to good and effective adhesion to a wide range of substrates.

 

 

 

LARBOND is the range of adhesives manufactured by Gairesa and includes products from the 3 chemical families mentioned above:

· LARBOND EP Series: epoxy adhesives.

· LARBOND PU Series: 2K polyurethane adhesives.

· LARBOND MMA Series: methylmethacrylate adhesives.

Below, two interactive tables are shown and some properties of these products can be checked. The first table shows epoxy and polyurethane adhesives and the second table shows methacrylate adhesives. All parameters can be sorted clicking on the heading of each column:

TYPE OF ADHESIVE     POT-LIFE (min) Tg∞ (ºC) TENSILE STRENGTH (MPa) ELASTIC MODULUS (TENSILE) (MPa) TENSILE ENERGY AT BREAK (kJ/m3) FRACTURE STRENGTH, KIC (MPa·m1/2) FRACTURE ENERGY, GIC (kJ/m2) ADH. STEEL (MPa) ADH. EPOXY (MPa)
LARBOND 5000 EP Epoxy Structural for epoxy 60 70 31 1515       7 16
LARBOND HI 5003 EP Epoxy Structural for steel 180 70 31 1820 635 1.9 2.1 18.5 10.2
LARBOND 5007 EP Epoxy High reactivity 25 65 18 1650 200 1.7 1.5 14.5 9
LARBOND 5008 EP Epoxy High reactivity 25 55 20 2600 75 1.5 0.5 20 10.5
LARBOND 5009 EP Epoxy Multipurpose high fracture strengh 40 45 19.5 800 1640 2.2 4.6 15 11.3
LARBOND 5010 EP Epoxy Nanogel high fracture strength 60 43 24 1200 1100 2 5 11 12
LARBOND 5011 EP Epoxy For underwater concrete 90 45 28 1500 550     10 8
LARBOND F,M 4001 PU 2K Polyurethane Structural 8-65 25 15 400 7000 1.1 15.5 12.8 20.2
LARBOND F,M 4002 PU 2K Polyurethane Flexible 17-30 -3 4 5.6 1540     3.5 4
LARBOND 4003 PU 2K Polyurethane Structural 50 50 28 2000 3500 2.6 8   11

 

Below the interactive table with our adhesives based on methacrylate is shown:

MMA ADHESIVES Type of adhesive POT-LIFE (min) Tg∞ (ºC) TENSILE STRENGTH (MPa) ELASTIC MODULUS (TENSILE) (MPa) TENSILE ENERGY TO BREAK (kJ/m3) ADH. STEEL (MPa) ADH. EPOXY (MPa) ADH. POLYESTER (MPa)
LARBOND S 3001 MMA Structural "slow" 60 70 25 1100 700 19 10 15
LARBOND M 3001 MMA Structural "medium" 30 70 21 920 675 19 10 15
LARBOND F 3001 MMA Structural "fast" 8 70 8.5 380 1640 19 10 15
LARBOND 3002 MMA For metals 15 50       22    
LARBOND 3003 MMA For plastics 25 20 7 210 8730   7 7
LARBOND 3004 MMA Multipurpose 35 40 15 700 1490 11 10 10
LARBOND 3005 MMA Maximum toughness 28 30 13 510 4220 15 10 10