Products

Strain gauge adhesives

TML adhesives are specially designed for bonding strain gauges to test specimens. Refer to the specification of each gauge series for applicable type of adhesives. To maintain the shelf life, store adhesives in a cool, dry and dark place such as a refrigerator(+5 to +10°C). However, never store in a freezer.
SDS (Safety Data Sheet)
TML supplies SDS for all its strain gauge ahesives and coatings. Contact your TML supplier for more information.

Detailed material

CN adhesives(General purpose)

CNSingle-component adhesive for strain gauges. The time required to bond the gauge is extremely short and handling is very easy. The thin bonding layer allows adhesion to plastic objects as well as metal. Curing time under normal conditions is 20~60 seconds.


TYPE
CN
Single component Room-temperature-curing
Contents
Single 2g×5
Component
Cyanoacrylate
Applicable specimen
Metal, Plastics, Composite
Operating temperature
-196~+120°C
Curing temperature and time
Room temperature 20sec. ~1 min.
(thumb pressure:100~300kPa)
Shelf life
6 months

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CN-E adhesives(Concrete, Mortar)

CN-ESingle-component adhesive featuring high viscosity for bonding strain gauges to porous materials such as concrete and mortar. Curing time under normal conditions is 40~120 seconds.


TYPE
CN-E
Single component Room-temperature-curing
Contents
Single 2g×5
Component
Cyanoacrylate
Applicable specimen
Concrete, Mortar, Wood
Operating temperature
-30~+120°C
Curing temperature and time
Room temperature 40sec. ~2 min.
(thumb pressure:100~300kPa)
Shelf life
6 months

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CN-R adhesives(Fast hardened type for cold district)

CN-RSingle-component cement for accelerating cures in lower ambient temperature, or lower relative humidity. Curing time under normal conditions is 10~30 seseconds.


TYPE
CN-R
Single component Room-temperature-curing
Contents
Single 2g×5
Component
Cyanoacrylate
Applicable specimen
Metal, Plastics, Composite
Operating temperature
-30~+120°C
Curing temperature and time
Room temperature 10~30 sec.
(thumb pressure:100~300kPa)
Shelf life
3 months

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CN-Y adhesives(Post-yield)

CN-YSingle-component adhesive designed exclusively for use on post-yield strain gauge. Offers minimum degradation in bonding performance (peel strength) due to aging. Suitable when a large strain measurement is made after a few days or more of bonding the strain gauge. Curing time under normal conditions is 60~120 seconds.


TYPE
CN-Y
Single component Room-temperature-curing
Contents
Single 2g×5
Component
Cyanoacrylate
Applicable specimen
Metal, Plastics, Composite
Operating temperature
-30~+80°C
Curing temperature and time
Room temperature 60 sec. ~2 min.
(thumb pressure:100~300kPa)
Shelf life
6 months

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P-2 adhesives(General purpose)

P-2Two-component room-temperature-curing polyester adhesive for bonding PF, P and F series strain gauges. Put the necessary quantity of drug A in the supplied mixing vessel, then add drug B by drops to total 2~6% by weight of drug A. Use the mixed adhesive within 5~15 minutes.


TYPE
P-2
Two component Room-temperature-curing
(Mixing ratio: 2-6%)
Contents
A:25g *
B:3g *
Component
Polyester
Applicable specimen
Metal
Operating temperature
-30~+180°C
Curing temperature and time
Room temperature
Pressure 50~300kPa
2~3 hrs.
Shelf life
6 months
* These contents are for outside Japan.

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RP-2 adhesives(Concrete, Mortar)

RP-2Two-component room-temperature-curing polyester adhesive for bonding PF and P series strain gauges. The mixing procedure is the same as above for P-2 adhesive. Put the necessary quantity of drug A in the supplied mixing vessel, then add drug B by drops to total 2~4% by weight of drug A. Use the mixed adhesive within 10~20 minutes.


TYPE
RP-2
Two component Room-temperature-curing
(Mixing ratio: 2-4%)
Contents
A:25g *
B:3g *
Component
Polyester
Applicable specimen
Concrete, Mortar
Operating temperature
-30~+180°C
Curing temperature and time
Room temperature
Pressure 50~300kPa
2~3 hrs.
Shelf life
3 months
* These contents are for outside Japan.

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PS adhesives(Concrete,Mortar,Wood)

PSTwo-component room-temperature-curing polyester adhesive. Used as a surface precoating agent for bonding P and PF series gauges to concrete and also as an adhesive for WFLM series gauges. The special filler contained exhibits alkali resistance and effectively shuts off moisture and gas from inside of the concrete. Its high viscosity enables use on vertical walls or ceilings. Put the necessary quantity of drug A in the supplied mixing vessel, then add drug B by drops to total 2~4% by weight of drug A.


TYPE
PS
Two component Room-temperature-curing
(Mixing ratio: 2-4%)
Contents
A:25g *
B:3g *
Component
Polyester
Applicable specimen
Concrete, Mortar, Wood
Operating temperature
-30~+100°C
Curing temperature and time
Room temperature
2~3 hrs.
Shelf life
3 months
* These contents are for outside Japan.

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NP-50B adhesives(High temperature)

NP-50Two-component room-temperature-curing polyester adhesive for bonding QF, ZF and BF series strain gauges. Put the necessary quantity of drug A into the supplied mixing vessel then add drug B by drops to total 3~4% by weight of drug A. Use the mixed adhesive within 5~20 minutes.


TYPE
NP-50B
Two component Room-temperature-curing
(Mixing ratio: 3-4%)
Contents
A:25g *
B:3g *
Component
Polyester
Applicable specimen
Metal, Composite
Operating temperature
-30~+300°C
Curing temperature and time
Room temperature
Pressure 50~300kPa
16 hrs.
Shelf life
6 months
* These contents are for outside Japan.

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C-1 adhesives(Long-term measurement, Transducer-specific)

C-1Single-component heat-curing type adhesive. For use on strain gauges that are suited to heat curing. Enables reliable measurement for long periods and in high temperature up to 200°C.


TYPE
C-1
Single component Heat-curing
Contents
Single 25g *
Component
Phenol
Applicable specimen
Metal
Operating temperature
-269~+200°C
Curing temperature and time
Pre-curing at 130°C, 1hr. pressure 200~300kPa.
Post-curing at 200°C 1hr. without pressure.
Shelf life
3 months
* This contents is for outside Japan.

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EA-2A adhesives(Cryogenic temperature)

EA-2ATwo-component room-temperature-curing epoxy ahesive for bonding CF series strain gauges for use in temperature from cryogenic ( - 269 °C) up to 50 ーC. Mix the necessary quantity of drugs A and B at the weight ratio of 2 to 1.


TYPE
EA-2A
Two component Room-temperature or heat curing
(Mixing ratio: 2:1)
Contents
A:25g *
B:15g *
Component
Epoxy
Applicable specimen
Metal, Concrete, Composite
Operating temperature
-269~+50°C
Curing temperature and time
Pressure at 50~300kPa,
Room temperature 1 day or at 50°C 2 hrs.
Shelf life
3 months
* These contents are for outside Japan.

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EB-2 adhesives(Long-term measurement)

EB-2Two-component room-temperature-curing epoxy adhesive for bonding strain gauges for use in temperatures from -60°C to +150°C. Enables stable measurement for a long period of time. Mix the necessary quantity of drugs A and B at the weight ratio of 10 to 3.


TYPE
EB-2
Two component Room-temperature-curing
(Mixing ratio: 10:3)
Contents
A:10g×3
B:3g×3
Component
Epoxy
Applicable specimen
Metal, Composite
Operating temperature
-60~+200°C
Curing temperature and time
Room temperature 1 day
Pressure 50~200kPa
Shelf life
3 months

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A-2 adhesives(Bolt embedding)

A-2Two-component heat-curing epoxy adhesive for bonding BTM strain gauges. Mix the necessary quantity of drugs A and B at the weight ratio of 10 to 1, then pour the mixed adhesive into a hole drilled of the bolt in which the gauge is inserted. Keep at room temperature for 12 hours, then cure at 140°C in furnace for 3 hours.


TYPE
A-2
Two component Heat curing
(Mixing ratio: 10:1)
Contents
A:25g *
B:5g *
Component
Epoxy
Applicable specimen
Bolt
Operating temperature
-30~+100°C
Curing temperature and time
Room temperature 12 hrs.
and 140°C 3 hrs.
Shelf life
3 months
* These contents are for outside Japan.

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