Dow Corning
813 silicone sealant
Glazing and construction sealant
DESCRIPTION TYPICAL PHYSICAL PROPERTIES SURFACE PREPARATION
These values are intended for use in
Dow Corning 813 is a one- Joint preparation
component, neutral curing, low preparing specifications.
modules silicone sealant that gives Cure type Alkoxy Cleaning
outstanding adhesion to both porous
and non-porous construction Flow, sag or slump < 2,5mm
Ensure that all surfaces are clean, dry
substrates including concrete, stone Extrusion rate, gr/min 230 sound and free from frost. Clean all
masonry, brick, aluminium, UPVC, joints of release agents, water
wood glass and glazed surfaces. Penetration (1/10 mm) 130
repellents, dust, dirt, old sealants, and
Working time 10 minutes other contaminants which could impair
USES Skin over time 10 - 20 min. adhesion. Metal surfaces should be
cleaned and degreased by wiping with
• For weathersealing between Staining None a solvent on an oil and lint free cloth.
aluminium, UPVC and wood door Cure time 24 hours
or window frames and Suitable solvents include acetone,
mostcommon construction Modulus at 100% 0,35 MPa
methyl ethyl ketone (MEK) or
substrates. elongation
methylated spirits. For large projects
• For weathersealing of curtain Elastic recovery > 90% where particular substrates are
walling, building facades, pre- involved e.g. coated aluminium,
fabricated concrete elements. Movement capability + 50%
specific solvent recommendations may
• For sealing and bonding of high Service temperature -50 C to
o
be required.
movement expansion joints. Ideal range
o
+150 C
as mirror adhesive. Back-up material
Hardness (Shore A) 25
FEATURES & BENEFITS Tensile strength 0,5 MPa abe duracord closed cell polyethylene
Elongation at break 375% backer rod is recommended as a back-
• 100% silicone rubber up material. Low-tack polyethylene
• Excellent unprimed adhesion to Specific gravity 1,47 tape should be used in joints too
many porous and non-porous Colours Black, bronze, shallow to allow a back-up rod.
construction substrates grey & white
• High movement capability up to + Masking
50% of original joint width
• Fast cure SURFACE PREPARATION Areas adjacent to the joints should be
• Excellent weathering masked with tape to prevent
characteristics including This table is a guide only contamination of substrates and
resistance to ozone, UV radiation Recom. ensure a neat sealant line. Masking
Surface Constr.
and temperature extreme Substrate
cleaning
degreas-
Primer tape should be removed immediately
ing
• Easy to apply one-component after tooling.
Degrease
sealant Ainodised or remove all
Methylated
spirits, None
• Non-slump, easy to tool mill finished loose
isopropyl required Finishing
aluminium. particals
• No maintenance required and dust.
alcohol
• Long service life Treated hard
None
The joint should be ´tooled´ within five
• Neutral cure wood, UPVC,
polycarbonate
As above As above
required minutes of application to ensure good
• Available in a range of colours. Stainless steel As above As above 1 200 NP
contact between the sealant and the
substrate. Tooling of the sealant also
Granite, marble As above As above Barrier 84
gives a smooth, professional finish.
Masonry, None
As above As above
concrete required
Revision 9203
Karachi: Room No.1, Mezzanine Floor, Al-Hayat Chambers, A-7, Block-7/8, K.C.H.S. Tel: +92 21 4535898-99, Fax: +92 21 4558071
Lahore: 25-A, FCC, Syed Maratib Ali Road, Gulberg 4, Tel: +92 42 5763360 Fax: +92 42 5875384
BONDING / PRIMING
MODEL SPECIFICATION HEALTH & SAFETY
Primer is recommended for optimum Dow Corning 813 is alkoxy and
adhesion particularly if subjected to One-component, neutral care, low should not be allowed contact with skin
water immersion. modulus silicone sealant with good and eyes. Avoid inhalation of fumes.
adhesion to unprimed porous and The use of gloves, eye protection and
MIXING non-porous substrates. masks is advised. Splashes into eyes
The sealant will be Dow Corning 813, should be washed immediately with
No mixing required. Use straight from a one-component, neutral curing, low plenty of clean water and medical
cartridge. modulus silicone sealant applied in advice sought.
accordance with the recommendations
COVERAGE of abe Construction Chemicals. The Cured Dow Corning 813 is inert and
sealant will meet the requirements of harmless.
BS 5889 type A, TT-S-001543A and
Estimating sealant requirements
Linear metres per 310 ml cartridge
TT-S-00230C (com-NBS) class A, IMPORTANT NOTE
ASTM specification.
Width (mm) 5 7 10 12 16 20 25
This data sheet is issued as a guide to
5 12,4 10,5 6,0 5,5 4,0 3,1 2,5 PACKAGING the use of the product(s) concerned.
(mm)
7 - 6,0 4,5 4,0 3,0 2,2 1,5 Whilst abe Construction Chemicals
10 - - 3,0 2,5 2,0 1,5 1,2 Dow Corning 813 is supplied in endeavours to ensure that any advice,
12 - - - 2,2 1,6 1,3 1,0 310 ml cartridges packed in boxes of recommendation, specification or
12, and 600 ml aluminum foil information is accurate and correct, the
sausages packed in boxes of 20. company cannot - because abe has no
direct or continuous control over where
APPLICATION
HANDLING & STORAGE and how abe products are applied -
accept any liability either directly or
Cut the tip of the nozzle at the angle indirectly arising from the use of abe
This product has a shelf life of
required. Apply Dow Corning 813 products, whether or not in accordance
12 months if kept in a dry cool place in
from a caulking gun using sufficient with any advice, specification,
the original packaging. In more
pressure to ensure adequate contact recommendation, or information given
extreme conditions this period might
with sides of joint. The surface of the by the company.
be shortened.
joint may be smoothed over with a little
liquid soap and water to ensure good
contact between the sealant and LIMITATIONS FURTHER INFORMATION
substrate.
Dow Corning 813 should not be used Where other products are to be used
against substrates that bleed oils, in conjunction with this material, the
CLEANING
plasticizers or solvents. It is not relevant technical data sheets should
recommended for use with certain be consulted to determine total
Excess sealant should be cleaned off
plastics, particularly flexible plasticised requirements. abe Construction
tools and non-porous surfaces whilst in
types. Dow Corning 813 is not Chemicals has a wealth of technical
an uncured state. Sealant adhering to
recommended for structural glazing or and practical experience built up over
porous surfaces should be left until just
insulated glazing applications. Consult years in the company’s pursuit of
cured and then removed by abrasion
abe Technical Services Department excellence in building and construction
or other mechanical means. Care must
for further advice in specific technology.
be taken not to discolour plastic
surfaces. applications.
Tools, brushes and mixing equipment
should be cleaned immediately after TEST COMPLIANCE
use and before material has set with
abe super brush cleaner followed by Dow Corning 813 meets or exceeds
washing with soap and water. the specifications:
• BS 5889 type A
PROTECTION ON COMPLETION • DIN 18 540 -F
• DIN 18 545 Gruppe E
Dow Corning 813 is UV resistant and • DIN 52 452 T 4
is suitable for internal and external • SNJF first category
use. No protection is required. • TT-S-001543A and
• TT-S-00230C (Com - NBS)
TEMPERATURE AND RELATIVE • class A, ASTM specification
HUMIDITY • C - 920 type S, grade NS,
class 25
Application temperature range:
o o
0 C - +40 C
Revision 9203
Karachi: Room No.1, Mezzanine Floor, Al-Hayat Chambers, A-7, Block-7/8, K.C.H.S. Tel: +92 21 4535898-99, Fax: +92 21 4558071
Lahore: 25-A, FCC, Syed Maratib Ali Road, Gulberg 4, Tel: +92 42 5763360 Fax: +92 42 5875384
