27240 - LOCTITE - Datasheet.Live

Technical Data Sheet

LOCTITE® 272™

December-2013

PRODUCT DESCRIPTION

LOCTITE® 272™ provides the following product

characteristics:

Technology Acrylic

Chemical Type Dimethacrylate ester

Appearance (uncured) Red-orange liquidLMS

Components One component -

requires no mixing

Viscosity Medium

Cure Anaerobic

Secondary Cure Activator

Application Threadlocking

Strength High

LOCTITE® 272™ is designed for the permanent locking and

sealing of threaded fasteners. The product cures when

confined in the absence of air between close fitting metal

surfaces and prevents loosening and leakage from shock and

vibration. Typical applications include the locking and sealing

of large bolts and studs (M25 and larger).

TYPICAL PROPERTIES OF UNCURED MATERIAL

Specific Gravity @ 25 °C 1.11

Flash Point - See SDS

Viscosity, Brookfield - RVT, 25 °C, mPa·s (cP):

Spindle 4, speed 20 rpm, 4,000 to 15,000LMS

TYPICAL CURING PERFORMANCE

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

M10 steel nuts and bolts compared to different materials and

tested according to ISO 10964.

% of Full Strength on Steel

Cure Time

100

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

Steel

Phos/oil

Zinc dichromate

As received steel

Cure Speed vs. Temperature

The rate of cure will depend on the temperature. The graph

below shows the breakaway strength developed with time at

different temperatures on M10 steel nuts and bolts and tested

according to ISO 10964.

% of Full Strength on Steel

Cure Time

100

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

40 °C

22 °C

5 °C

Cure Speed vs. Activator

Where cure speed is unacceptably long, or large gaps are

present, applying activator to the surface will improve cure

speed. The graph below shows the breakaway strength

developed with time on M10 zinc dichromate steel nuts and

bolts using Activator 7471™ and 7649™ and tested according

to ISO 10964.

% of Full Strength on Steel

Cure Time

100

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

Activator 7471™

Activator 7649™

No activator

TDS LOCTITE® 272™, December-2013

TYPICAL PROPERTIES OF CURED MATERIAL

Physical Properties:

Coefficient of Thermal Expansion,

ISO 11359-2, K-1

80×10-6

Coefficient of Thermal Conductivity, ISO 8302,

W/(m·K)

0.1

Specific Heat, kJ/(kg·K) 0.3

TYPICAL PERFORMANCE OF CURED MATERIAL

Adhesive Properties

After 24 hours @ 22 °C

Breakaway Torque, ISO 10964:

M10 steel nuts and bolts N·m 23

(lb.in.) (200)

3/8 x 16 steel nuts (grade

2) and bolts (grade 5)

N·m ≥18LMS

(lb.in.) (≥159)

Prevail Torque, ISO 10964:

M10 steel nuts and bolts N·m 25

(lb.in.) (220)

3/8 x 16 steel nuts (grade

2) and bolts (grade 5)

N·m ≥18LMS

(lb.in.) (≥159)

Compressive Shear Strength, ISO 10123:

Steel pins and collars N/mm² ≥14.5LMS

(psi) (≥2,102)

Cured for 24 hours @ 22 °C followed by 72 hours @ 200 °C, tested

@ 200 °C

Compressive Shear Strength, ISO 10123:

Steel pins and collars N/mm² ≥20LMS

(psi) (≥2,900)

TYPICAL ENVIRONMENTAL RESISTANCE

Cured for 24 hours @ 22 °C

Breakaway Torque, ISO 10964:

M10 steel nuts and bolts

Hot Strength

Tested at temperature

% Strength @ 22 °C

Temperature, °C

100

0 50 100 150 200

Chemical/Solvent Resistance

Aged under conditions indicated and tested @ 22°C.

% of initial strength

Environment °C 720 h

Air reference 87 100

Motor oil (MIL-L-46152) 87 62

Gasoline 87 62

Water 87 58

Processing

Temperature 87 87

Toluene 87 80

Phosphate ester 87 70

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

Safety Data Sheet (SDS).

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. If the material is an inactive metal or the cure speed is

too slow, spray all threads with Activator 7471™ or

7649™ and allow to dry.

3. To prevent the product from clogging in the nozzle, do

not allow the tip to touch metal surfaces during

application.

4. For Thru Holes, apply several drops of the product onto

the bolt at the nut engagement area.

5. For Blind Holes, apply several drops of the product

down the internal threads to the bottom of the hole.

6. For Sealing Applications, apply a 360° bead of product

to the leading threads of the male fitting, leaving the first

thread free. Force the material into the threads to

thouroughly fill the voids. For bigger threads and voids,

adjust product amount accordingly and apply a 360°

bead of product on the female threads also.

7. Assemble and tighten as required.

For Disassembly

1. Apply localized heat to nut or bolt to approximately

250 °C. Disassemble while hot.

For Cleanup

1. Cured product can be removed by soaking in a Loctite®

solvent, e.g. Loctite® 7200 and mechanical removal with

Henkel Americas

+860.571.5100

Henkel Europe

+49.89.320800.1800

Henkel Asia Pacific

+86.21.2891.8859

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

TDS LOCTITE® 272™, December-2013

a soft scraper. Avoid formation of dust and aerosols.

Complete the cleaning process by wiping with a soft

cloth dampened with Loctite® Cleaner, e.g. Loctite®

7063 or Loctite® ODC-free cleaner.

Loctite Material SpecificationLMS

LMS dated February-14, 2000. 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.

Storage

Store product in the unopened container in a dry location.

Storage information may be indicated on the product container

labeling.

Optimal Storage: 8 °C to 21 °C. Storage below 8 °C or

greater than 28 °C can adversely affect product properties.

Material removed from containers may be contaminated during

use. Do not return product to the original container. Henkel

Corporation cannot assume responsibility for product which

has been contaminated or stored under conditions other than

those previously indicated. If additional information is required,

please contact your local Technical Service Center or

Customer Service Representative.

Conversions

(°C x 1.8) + 32 = °F

kV/mm x 25.4 = V/mil

mm / 25.4 = inches

µm / 25.4 = mil

N x 0.225 = lb

N/mm x 5.71 = lb/in

N/mm² x 145 = psi

MPa x 145 = psi

N·m x 8.851 = lb·in

N·m x 0.738 = lb·ft

N·mm x 0.142 = oz·in

mPa·s = cP

Note:

The information provided in this Technical Data Sheet (TDS) including the

recommendations for use and application of the product are based on our

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

working conditions in your environment that are beyond our control. Henkel is,

therefore, not liable for the suitability of our product for the production processes

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

prior trials to confirm such suitability of our product.

Any liability in respect of the information in the Technical Data Sheet or any other

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

product liability law.

In case products are delivered by Henkel Belgium NV, Henkel Electronic

Materials NV, Henkel Nederland BV, Henkel Technologies France SAS and

Henkel France SA please additionally note the following:

In case Henkel would be nevertheless held liable, on whatever legal ground,

Henkel’s liability will in no event exceed the amount of the concerned delivery.

In case products are delivered by Henkel Colombiana, S.A.S. the following

disclaimer is applicable:

The information provided in this Technical Data Sheet (TDS) including the

recommendations for use and application of the product are based on our

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

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

prior trials to confirm such suitability of our product.

Any liability in respect of the information in the Technical Data Sheet or any other

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

product liability law.

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 1.4

Henkel Americas

+860.571.5100

Henkel Europe

+49.89.320800.1800

Henkel Asia Pacific

+86.21.2891.8859

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