HYLOSIL 622
Self-levelling Oxime curing RTV silicone sealant
Description
Hylosil 622 is a self-levelling, neutral, non-corrosive, low odour, Room Temperature Vulcanising,
(RTV) silicone sealant/adhesive. It is compatible with silicone primers and most
plastic/polycarbonates.
Hylosil 622 is a special purpose adhesive and sealant that can be used for a variety of applications. It
has good resistance to oils and aqueous anti-freeze agents
Unlike general-purpose silicone sealants, Hylosil 622 contains no solvents and does not give off acetic
acid during cure, making it particularly suitable for applications in odour sensitive environments.
Typical Properties, Uncured Product
Colour Black
Consistency Self-levelling paste
Cross Linking System Oxime
Specific Gravity (DIN 53479) 1.14 g/ml
Solids Content 100%
Viscosity 80,000 cps
Skin Forming Time at 23°C/50% RH 20 minutes
Cure Rate @ 25°C and 60% RH 3mm per 24 hours
Cured Product
Tensile Strength DIN 53505, S3A 1.79 N/mm2
Elongation @ Break DIN 53504, S3A 150%
E Modulus @ 100% Elongation 1.17 N/mm2
DIN 53504, S3A
Hardness Shore A DIN 53505 34°
Shrinkage DIN 53504, S3A 3%
Typical temperature Range -40° to 250°C
Instructions for use
Ensure both surfaces to be bonded are clean, dry and free from contamination such as oil or
grease. The compound can be applied to form any size or shape of gasket.
Apply a bead directly onto one surface. Once applied, the joint should be assembled without
delay.
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.
Hylomar Ltd, Cale Lane, Wigan WN2 1JT UK
Tel: +44 (0) 1942 617000
Fax: +44 (0) 1942 617001
Revision date
Product name
02.06.2010
Page 1
Hylosil 622 issue 6
of 2
Care should be taken to ensure any excess compound does not extrude internally and foul any
internal oil-ways or other channels and cause blockages. Any excess external product can be
wiped away with a damp cloth.
Typical Applications
Hylosil 622 has excellent penetrating properties making it ideal for sealing and adhering to uneven or
complex surfaces.
Handling and Safety Properties
Risk Phrases
R21, R40, R41 and R43.
Safety Phrases
S2, S13, S23, S26 and S36/37/39
For further information please refer to the Safety Data Sheet
The shelf life of Hylosil 622 is12 months when stored in original unopened containers between 5°
and 25°C.
Packaging
Hylosil 622 is available in: 300ml Cartridges and 17 litre kegs. For full details please contact our
Sales Department.