Hylomar Aerograde PL32 Technical Data Sheet

HYLOMAR AEROGRADE (PL32)
Aerospace version of Universal Blue
Description
Hylomar Aero Grade is a highly engineered, polyester-urethane based non-setting and non-
hardening gasketing compound, for use in the aeronautical industry. Hylomar Aerograde was
developed in conjunction with Rolls Royce - Aerospace Division for sealing joints in jet turbine
engines. Hylomar Aero Grade can operate at temperatures from approximately –50°C to +
250°C.
Typical Properties
LIGHT GRADE
Film Thickness 0.015 mm
Surface Finish Max 2.0 μm Ra
Area covered by 100 g 1.875 m2
Product coverage after drying 2 mg/cm2
MEDIUM GRADE
Film Thickness 0.03 mm
Surface Finish Max 3.0 μm Ra
Area covered by 100 g 1.125 m2
Product coverage after drying 4 mg/cm2
Heavy GRADE
Film Thickness 0.09 mm
Surface Finish Max 3.5 μm Ra
Area covered by 100 g 0.56 m2
Product coverage after drying 12 mg/cm2
Instructions for use
The joint faces should be clean and dry. For best results both faces should then be coated
with a thin even film of the product and the solvent allowed to evaporate, the components are
then assembled. Since Hylomar Aero Grade is non-setting, once applied to the faces of the
component, immediate assembly is not required. Due to the nature of Hylomar Aerograde, re-
torquing of assembled components may be required.
For stud loading, torque to required figure, allow compound to settle for a few minutes, then
re-torque.
Hylomar Aero Grade can be removed from dismantled components by rubbing with a cloth
soaked with Acetone. No scraping is necessary.
Information given in this publication is based upon technical data gained in our own and other Laboratories and is believed to be true. However the material is used in
conditions beyond our control thus we can assume no liability for results obtained or damages incurred through the application of the data present herein.

Revision date
Product name
12.05.2010
Page 1
Hylomar Aerograde version 8
of 2
Typical Applications
Hylomar Aero Grade is resistant to air; turbine and piston engine combustion products; water;
glycol/water and methanol/water mixtures; petroleum and synthetic diester lubricating oils;
gasolines and kerosene fluids (both Avtur and Avcat) and some fluorocarbon refrigerants.
It is harmless to most joint face materials. Traces of volatiles produced at elevated
temperatures do not stain copper or silver, therefore, Hylomar Aero Grade is suitable for joints
and threads in close proximity to switch mechanisms etc. It is equally suitable for use as a
gasket dressing and for metal to metal application.
Hylomar Aero Grade has been tested, approved and is in use by, National Power/ Powergen,
MOD A.F.S. 147 D.T.D. 900/4586B, Rolls Royce MSRR 9055. The N.A.T.O. stock number for
Aero Grade Medium is 8030-99-220-2370. Heavy Grade is, 8030-99-224-5078
Handling and Safety Properties
The compound is non-flammable.
Product contains Dichloromethane.
Labelling: Harmful carc cat 3. Phrases R40, S2, S23, S24/25 & S36/37.
Observe normal standards of industrial hygiene for handling chemicals. Avoid contact with
skin & eyes. Avoid breathing vapours.
Storage Precautions: Store in a cool, dry place between 5°- 25°C with adequate ventilation.
In climates where temperatures are likely to exceed 25oC we strongly recommend
that the customer buy cartridges rather than tubes.
Other Information
Shelf life is 2 years when stored in original unopened containers as detailed above
N.B. After filling, subsequent handling of the tube causes minor indentations. This may
cause the contents to be under a slight pressure. Care should be exercised when initially
opening the tube as a small of product may spurt out.
Packaging
Please contact our sales department for details.