Technical Data Sheet

LOCTITE® 572
July-2013

PRODUCT DESCRIPTION Cure Speed vs. Bond Gap

LOCTITE® 572 provides the following product characteristics: The rate of cure will depend on the bondline gap. Gaps in
Technology Acrylic threaded fasteners depends on thread type, quality and size.
The following graph shows shear strength developed with time
Chemical Type Dimethacrylate ester
on steel pins and collars at different controlled gaps and tested
Appearance (uncured) White to off-white pasteLMS according to ISO 10123.
Components One component -
requires no mixing
Viscosity High, thixotropic 100

% of Full Strength on Steel

Cure Anaerobic
Secondary Cure Activator
75
Application Thread sealing
Strength Medium
50
LOCTITE® 572 is designed for the locking and sealing of metal

m
5m
pipes and fittings. The product cures when confined in the

0.0
0.15 mm
absence of air between close fitting metal surfaces and 25
prevents loosening and leakage from shock and vibration. The
thixotropic nature of LOCTITE® 572 reduces the migration of
0
liquid product after application to the substrate. 1min 5min10min 30min 1h 3h 6h 24h 72h
Cure Time
TYPICAL PROPERTIES OF UNCURED MATERIAL
Specific Gravity @ 25 °C 1.25
Flash Point - See MSDS Cure Speed vs. Temperature
Viscosity, Brookfield - RVT, 25 °C, mPa·s (cP): The rate of cure will depend on the temperature. The graph
Spindle 6, speed 2.5 rpm, 28,800 to 77,000LMS below shows the breakaway strength developed with time at
Spindle 6, speed 20 rpm 14,400 to 28,600LMS different temperatures on M10 steel nuts and bolts and tested
according to ISO 10964.
TYPICAL CURING PERFORMANCE

100
% of Full Strength on Steel

Cure Speed vs. Substrate

The rate of cure will depend on the substrate used. The graph
below shows the breakaway strength developed with time on 75
M10 steel nuts and bolts compared to different materials and
tested according to ISO 10964.
50 C
°C

22 °
40

100
% of Full Strength on Steel

25

75
0
l
Stee

1min 5min10min 30min 1h 3h 6h 24h 72h

Cure Time
50
e
at
m

25 s
as
ro

Br
ch
di
nc
Zi

0
1min 5min10min 30min 1h 3h 6h 24h 72h
Cure Time
 TDS LOCTITE® 572, July-2013

Cure Speed vs. Activator Hot Strength

Where cure speed is unacceptably long, or large gaps are Tested at temperature
present, applying activator to the surface will improve cure 100
speed. The graph below shows the breakaway strength
developed with time on M10 zinc dichromate steel nuts and

% Strength @ 22 °C
bolts using Activator 7471™ and 7649™ and tested according 75
to ISO 10964.

50
100
% of Full Strength on Steel

25
75

0
Activator 7471™ 0 50 100 150
50
Temperature, °C
4 9™
r 76

tor
25 a to Heat Aging
tiv

va
Ac Aged at temperature indicated and tested @ 22 °C
ti
ac
100
No

% Initial Strength @ 22 °C
1min 5min10min 30min 1h 3h 6h 24h 72h
Cure Time 120 °C
75

TYPICAL PROPERTIES OF CURED MATERIAL 150 °C

50
Physical Properties:
Coefficient of Thermal Expansion, 80×10-6
ISO 11359-2, K-1
25
Coefficient of Thermal Conductivity, ISO 8302, 0.1
W/(m·K)
Specific Heat, kJ/(kg·K) 0.3
0
0 1000 2000 3000 4000 5000
Exposure Time, hours
TYPICAL PERFORMANCE OF CURED MATERIAL
Adhesive Properties
Chemical/Solvent Resistance
After 24 hours @ 22 °C Aged under conditions indicated and tested @ 22 °C.
Breakaway Torque, ISO 10964: % of initial strength
M10 steel nuts and bolts N·m 7 Environment °C 100 h 500 h 1000 h
(lb.in.) (60)
Motor oil (MIL-L-46152) 125 75 70 70
Prevail Torque, ISO 10964:
M10 steel nuts and bolts N·m 3 Leaded Petrol 22 95 95 95
(lb.in.) (30) Brake fluid 22 100 100 100
Breakloose Torque, ISO 10964, Pre-torqued to 5 N·m: Water/glycol 50/50 87 90 80 55
M10 steel nuts and bolts N·m 20 Ethanol 22 90 90 90
(lb.in.) (180) Acetone 22 85 85 75
Max. Prevail Torque, ISO 10964, Pre-torqued to 5 N·m:
M10 steel nuts and bolts N·m 20
(lb.in.) (180)

Compressive Shear Strength, ISO 10123:

Steel pins and collars N/mm² 0.5LMS
(psi) (70)

TYPICAL ENVIRONMENTAL RESISTANCE

Cured for 1 week @ 22 °C
Breakloose Torque, ISO 10964, Pre-torqued to 5 N·m:
M10 zinc phosphate steel nuts and bolts

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 TDS LOCTITE® 572, July-2013

GENERAL INFORMATION Storage

This product is not recommended for use in pure oxygen Store product in the unopened container in a dry location.
and/or oxygen rich systems and should not be selected as Storage information may be indicated on the product container
a sealant for chlorine or other strong oxidizing materials. labeling.
Optimal Storage: 8 °C to 21 °C. Storage below 8 °C or
greater than 28 °C can adversely affect product properties.
For safe handling information on this product, consult the
Material removed from containers may be contaminated during
Material Safety Data Sheet (MSDS).
use. Do not return product to the original container. Henkel
Corporation cannot assume responsibility for product which
Where aqueous washing systems are used to clean the has been contaminated or stored under conditions other than
surfaces before bonding, it is important to check for those previously indicated. If additional information is required,
compatibility of the washing solution with the adhesive. In please contact your local Technical Service Center or
some cases these aqueous washes can affect the cure and Customer Service Representative.
performance of the adhesive.
Conversions
(°C x 1.8) + 32 = °F
This product is not normally recommended for use on plastics
kV/mm x 25.4 = V/mil
(particularly thermoplastic materials where stress cracking of
mm / 25.4 = inches
the plastic could result). Users are recommended to confirm
µm / 25.4 = mil
compatibility of the product with such substrates.
N x 0.225 = lb
N/mm x 5.71 = lb/in
Directions for use: N/mm² x 145 = psi
MPa x 145 = psi
For Assembly N·m x 8.851 = lb·in
1. For best results, clean all surfaces (external and internal) N·m x 0.738 = lb·ft
with a LOCTITE® cleaning solvent and allow to dry. N·mm x 0.142 = oz·in
2. If the material is an inactive metal or the cure speed is too mPa·s = cP
slow, spray with Activator 7471™ or 7649™ and allow to
dry. Disclaimer
Note:
3. Apply a 360° bead of product to the leading threads of the The information provided in this Technical Data Sheet (TDS) including the
male fitting, leaving the first thread free. Force the recommendations for use and application of the product are based on our
material into the threads to thoroughly fill the voids. For knowledge and experience of the product as at the date of this TDS. The product
can have a variety of different applications as well as differing application and
bigger threads and voids, adjust product amount working conditions in your environment that are beyond our control. Henkel is,
accordingly and apply a 360° bead of product on the therefore, not liable for the suitability of our product for the production processes
female threads also. and conditions in respect of which you use them, as well as the intended
applications and results. We strongly recommend that you carry out your own
4. Using compliant practices, assemble and wrench tighten prior trials to confirm such suitability of our product.
fittings in accordance with manufacturers Any liability in respect of the information in the Technical Data Sheet or any other
recommendations. written or oral recommendation(s) regarding the concerned product is excluded,
except if otherwise explicitly agreed and except in relation to death or personal
5. Properly tightened fittings will seal instantly to moderate injury caused by our negligence and any liability under any applicable mandatory
pressures. For maximum pressure resistance and solvent product liability law.
resistance allow the product to cure a minimum of 24
In case products are delivered by Henkel Belgium NV, Henkel Electronic
hours. Materials NV, Henkel Nederland BV, Henkel Technologies France SAS and
Henkel France SA please additionally note the following:
For Disassembly In case Henkel would be nevertheless held liable, on whatever legal ground,
1. Remove with standard hand tools. Henkel’s liability will in no event exceed the amount of the concerned delivery.
2. Where hand tools do not work because of excessive In case products are delivered by Henkel Colombiana, S.A.S. the following
engagement length or large diameters (over 1"), apply disclaimer is applicable:
localized heat to approximately 250 °C. Disassemble The information provided in this Technical Data Sheet (TDS) including the
recommendations for use and application of the product are based on our
while hot. knowledge and experience of the product as at the date of this TDS. Henkel is,
therefore, not liable for the suitability of our product for the production processes
For Cleanup and conditions in respect of which you use them, as well as the intended
1. Cured product can be removed with a combination of applications and results. We strongly recommend that you carry out your own
soaking in a Loctite solvent and mechanical abrasion prior trials to confirm such suitability of our product.
Any liability in respect of the information in the Technical Data Sheet or any other
such as a wire brush. written or oral recommendation(s) regarding the concerned product is excluded,
except if otherwise explicitly agreed and except in relation to death or personal
injury caused by our negligence and any liability under any applicable mandatory
Loctite Material SpecificationLMS product liability law.
LMS dated July-9, 2013. Test reports for each batch are
available for the indicated properties. LMS test reports include
selected QC test parameters considered appropriate to
specifications for customer use. Additionally, comprehensive
controls are in place to assure product quality and
consistency. Special customer specification requirements may
be coordinated through Henkel Quality.

Henkel Americas Henkel Europe Henkel Asia Pacific

+860.571.5100 +49.89.320800.1800 +86.21.2891.8863
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 TDS LOCTITE® 572, July-2013
In case products are delivered by Henkel Corporation, Resin Technology
Group, Inc., or Henkel Canada Corporation, the following disclaimer is
applicable:
The data contained herein are furnished for information only and are believed to
be reliable. We cannot assume responsibility for the results obtained by others
over whose methods we have no control. It is the user's responsibility to
determine suitability for the user's purpose of any production methods mentioned
herein and to adopt such precautions as may be advisable for the protection of
property and of persons against any hazards that may be involved in the handling
and use thereof. In light of the foregoing, Henkel Corporation specifically
disclaims all warranties expressed or implied, including warranties of
merchantability or fitness for a particular purpose, arising from sale or use
of Henkel Corporation’s products. Henkel Corporation specifically
disclaims any liability for consequential or incidental damages of any kind,
including lost profits. The discussion herein of various processes or
compositions is not to be interpreted as representation that they are free from
domination of patents owned by others or as a license under any Henkel
Corporation patents that may cover such processes or compositions. We
recommend that each prospective user test his proposed application before
repetitive use, using this data as a guide. This product may be covered by one or
more United States or foreign patents or patent applications.

Trademark usage
Except as otherwise noted, all trademarks in this document are trademarks of
Henkel Corporation in the U.S. and elsewhere. ® denotes a trademark
registered in the U.S. Patent and Trademark Office.

Reference 1.1

Henkel Americas Henkel Europe Henkel Asia Pacific

+860.571.5100 +49.89.320800.1800 +86.21.2891.8863
For the most direct access to local sales and technical support visit: www.henkel.com/industrial