Datasheet

TDS LOCTITE
®
268, May-2004
TYPICAL PERFORMANCE OF CURED MATERIAL
Adhesive Properties
Cured for 24 hours @ 22 °C
Breakloose Torque, ISO 10964, Pre-torqued to 5 N·m:
3/8 x 16 steel nuts (grade
2) and bolts (grade 5)
(degreased)
N·m ≥17
LMS
(lb.in.) (150)
Cured for 72 hours @ 22 °C
Breakloose Torque, ISO 10964, Pre-torqued to 5 N·m:
M10 black oxide steel
nuts and bolts (degreased)
N·m 25 to 50
(lb.in.) (220 to 440)
3/8 x 16 steel nuts (grade
2) and bolts (grade 5)
(degreased)
N·m 25 to 50
(lb.in.) (220 to 440)
TYPICAL ENVIRONMENTAL RESISTANCE
Cured for 72 hours @ 22 °C
Breakloose Torque, ISO 10964, Pre-torqued to 5 N·m:
3/8 x 16 zinc phosphate & oil nuts and bolts
(degreased)
Hot Strength
Tested at temperature
% RT Strength
Temperature, °C
100
75
50
25
0
0 50 100 150
Heat Aging
Aged at temperature indicated and tested @ 22 °C
% Initial Strength at RT
Hours
120
100
80
60
40
20
0
0 250 500 750 1,000
100 °C
125 °C
150 °C
Chemical/Solvent Resistance
Aged under conditions indicated and tested @ 22 °C.
% of initial strength
Environment °C 500 hr 1000 hr
Motor Oil 125 80 82
Auto Trans. Fluid 87 106 104
Gasoline 22 103 98
Brake fluid 22 97 102
Water Glycol 50/50 87 107 100
Ethanol 22 99 100
IPA 22 103 97
Acetone 22 95 98
GENERAL INFORMATION
This product is not recommended for use in pure oxygen
and/or oxygen rich systems and should not be selected as
a sealant for chlorine or other strong oxidizing materials.
For safe handling information on this product, consult the
Material Safety Data Sheet (MSDS).
Where aqueous washing systems are used to clean the
surfaces before bonding, it is important to check for
compatibility of the washing solution with the adhesive. In
some cases these aqueous washes can affect the cure and
performance of the adhesive.
This product is not normally recommended for use on plastics
(particularly thermoplastic materials where stress cracking of
the plastic could result). Users are recommended to confirm
compatibility of the product with such substrates.
Directions for use
For Assembly
1. For best results, clean all surfaces (external and internal)
with a Loctite cleaning solvent and allow to dry.
2. Advance only enough stick product to use at the time of
application.
3. Remove any skin that may have formed on the top of the
stick.
4. Apply sufficient product to fill the threads in the area
where the nut will be engaged on the bolt.
5. Recap product after use.
6. Assemble and tighten as required.
For Disassembly
1. Where hand tools do not work because of excessive
engagement length or large diameters (over 1"), apply
localized heat to approximately 250 °C. Disassemble
while hot.
For Cleanup
1. Cured product can be removed with a combination of
soaking in a Loctite solvent and mechanical abrasion
such as a wire brush.
Henkel Loctite Americas
+860.571.5100
Henkel Loctite Europe
+49.89.9268.0
Henkel Loctite Asia Pacific
+81.45.758.1810
For the most direct access to local sales and technical support visit: www.loctite.com