Product Information

High
Performance ®
Building Dow Corning 895 Structural
Glazing Sealant
FEATURES & BENEFITS One-part silicone sealant.
 Meets European standards for
structural glazing application, as APPLICATIONS
developed by EOTA  Dow Corning® 895 Structural Glazing Sealant is a one component silicone
 Excellent adhesion to a wide range sealant used for structural glazing.
of substrates including coated,
enameled and reflective glasses TYPICAL PROPERTIES
and polyester coated aluminum Specification writers: These values are not intended for use in preparing
profiles and stainless steel profiles specifications. Please contact your local Dow Corning sales office or your Global
 Odorless and non-corrosive cure Dow Corning Connection before writing specifications on this product.
system
 One-component product Test* Property Unit Value
 Resistant to ozone As supplied
 Excellent stability through wide Specific gravity 1.43
range of temperatures: Slump or flow mm 0
-50°C to 150°C Tack-free time (25°C, 50% R.H.) minutes 60
 The cured product exhibits Cure schedule (25°C, 50% R.H.)
excellent weathering - after 24 hours mm 2.2
- after 72 hours mm 3.5
characteristics, and a high (See also Optimal Glazing Conditions)
resistance to ultra-violet radiation As cured - after 7 days at 25°C and
heat and humidity 50% RH
 High tensile strength makes it ASTM D2240 Durometer hardness, Shore A Points 38
ideally suited for structural ASTM D0412 Ultimate elongation % 600
bonding applications ASTM D0412 Tensile strength, at 100% elongation MPa 0.7
ASTM D0412 Tensile strength, at ultimate elongation MPa 2.85
ASTM D624 Tear strength kN/m 19
H-Piece Testing
ISO 8339 Ultimate elongation % 260
ISO 8339 Tensile strength MPa 1.06
ISO 8339 Young modulus MPa 1.0
Sealant dynamic design load Pa 140,000
Sealant static design load Pa 7,000
Service temperature range °C -50 to +150
Working time minutes 15
*
ASTM: American Society for Testing and Materials.
ISO: International Standardisation Organisation.

DESCRIPTION Neutral alkoxy cures at room

Dow Corning® 895 is a one-part temperature on exposure to water
neutral curing silicone sealant vapour in the air, giving off a small
designed specifically for the structural amount of methanol.
bonding of glass, metal, and other
building components. TECHNICAL
SPECIFICATIONS AND
It can also be used to adhere stiffening STANDARDS
elements to building panels and for Dow Corning 895 Sealant exhibits a
other similar adhesive applications. high level of physical properties and
adhesive performances which are accessory materials as part of the Priming
retained even after aging as detailed standard testing services. Closed cell Priming is not usually required when
by EOTA (Ref: INV 96/BE.35). polyethylene foam is the using Dow Corning 895 Sealant.
recommended backer material for However, it is essential that adhesion
CE Marked (ETA 01/005) as most joints. Silicone-based setting be tested prior to use. Specific primer
structural glazing sealant component blocks are generally recommended for recommendations will be made by
according to ETAG002, the European best compatibility. Dow Corning Technical Services
Technical Guidelines for structural Department on a project basis. Please
glazing with a level of attestation of 1. Some typical examples of joint contact Dow Corning for further
(external quality audit) valid in all EC designs are shown in Figures 2 advice.
countries. and 5.
Masking and tooling
Meets structural glazing sealant Optimal glazing conditions Areas adjacent to joints may be
requirements according to Ideally, all glazing should be done in masked to ensure a neat sealant line.
PrEN13022, SNJF VEC and Vi-VEC. factory and within the following Do not allow masking tape to touch
conditions of temperature and clean surfaces to which the sealant is
humidity: to adhere. Tooling should be
completed in one continuous stroke
Temperature conditions: within 5 minutes after sealant
5°C to 40°C application. Masking tape should be
removed immediately after tooling.
INSTALLATION Humidity conditions: 40% to 95%
For structural glazing use, Application method
Dow Corning 895 Sealant should be Install the backing material, setting
Recommended temperatures range:
factory-applied. Factory application blocks and spacer tapes a specified.
from 15°C to 30°C
helps ensure optimal sealing Apply Dow Corning 895 Sealant in a
conditions and performance. Job-site continuous operation using positive
application should only be carried out Figure 1: Humidity cure envelope pressure to properly fill and seal the
for remedial work, or when the for Dow Corning 895 Sealant. joint. Tool the sealant with slight
glazing design does not allow pressure to spread it against the
otherwise. backing material and the joint
surfaces. A tool with a concave profile
This adhesive meets European is recommended to keep the sealant
Standard for structural glazing within the joint.
application the EOTA guidelines for
SSGS. MAINTENANCE
No maintenance is needed. If sealant
Joint Design becomes damaged, replace damaged
As a general rule, structural sealant portion.
Any combination of the above
joints made with Dow Corning
conditions will ensure a cure schedule
895 Sealant should have a width Dow Corning 895 Sealant will adhere
sufficient to allow transportation of
between 6mm and 15mm. However, to compatible cured silicone sealants
the glazed modules within 21 days,
the exact width is determined by the which exhibits a clean knife-cut or
depending on joint configuration.
structural calculations. The width abraded surface.
Consult Dow Corning for specific
(dimension y) of the structural sealant
advice.
joint should also be calculated to TECHNICAL SERVICES
accomodate thermal and dynamic Your Dow Corning contact details
movements but as a rule should not be Preparatory work
Clean all joints and glazing pockets, (e-mails):
less than 6mm.
removing all contaminants such as
grease, oil, dust, water, frost, surface Technical inquiries:
Accessory selection eutech.info@dowcorning.com
dirt, old sealant, or glazing compounds
The appropriate selection of all
and protective coatings. Metal, glass
accessories such as setting blocks and Marketing:
and plastic surfaces should be cleaned
backing materials is of primary construction.marketing@
by mechanical or solvent procedures,
importance in avoiding discolouration dowcorning.com
Where used solvent should be wiped
or adhesion-related problems due to
on and off with clean, oil and lint free
incompatibility. Dow Corning will
cloths.
also assess the suitability of proposed
Dow Corning is a registered trademark of Dow Corning Corporation.
We help you invent the future. is a trademark of Dow Corning Corporation.
2014; January 23 XIAMETER is a registered trademark of Dow Corning Corporation.
Form No. 10-0847L-01 © 1998 - 2014 Dow Corning Corporation. All rights reserved.
2
Quality Bond: Dow Corning 895 Sealant has a usable Dow Corning’s sole warranty is that
qualitybond@dowcorning.com life of 12 months from the date of our products will meet the sales
production. specifications in effect at the time of
EHS inquiries: shipment.
europe.ehs@dowcorning.com PACKAGING
INFORMATION Your exclusive remedy for breach of
Reach inquiries: This product is available in 250kg such warranty is limited to refund of
reachsupport@dowcorning.com drums, 20 liter pails, 310ml cartridges purchase price or replacement of any
(12 per box) and 600ml sausages. product shown to be other than as
Your Technical Service contact warranted.
details (phone):
Toll Free Numbers:
LIMITATIONS DOW CORNING SPECIFICALLY
Dow Corning 895 Sealant should not DISCLAIMS ANY OTHER
From Belgium +0800 80 522
be used for structural applications EXPRESS OR IMPLIED
From France +0805 54 04 39
without the prior written approval of WARRANTY OF FITNESS FOR A
From Germany +0800 52 50 258
Dow Corning Construction Industry PARTICULAR PURPOSE OR
From Italy +800 92 83 30
Technical Services Department. Each MERCHANTABILITY.
From Spain +900 813161
project should be specifically and
From United Kingdom
separately approved by Dow Corning.
+0800 9172 071 DOW CORNING DISCLAIMS
LIABILITY FOR ANY
This product is neither tested nor INCIDENTAL OR
All other countries:
represented as suitable for medical or CONSEQUENTIAL DAMAGES.
For English +32 64 51 11 59
pharmaceutical uses.
For French +32 64 51 11 59
For German +49 611 237503 We help you invent the future.™
For Italian +32 64 51 11 73 HEALTH AND
For Spanish +32 64 51 11 66 ENVIRONMENTAL dowcorning.com
For Russian +7 495 725 43 19 INFORMATION
To support Customers in their product
Fax number from all countries: safety needs, Dow Corning has an
+32 64 88 86 86 extensive Product Stewardship
organization and a team of Product
HANDLING Safety and Regulatory Compliance
PRECAUTIONS (PS&RC) specialists available in each
area.
PRODUCT SAFETY
INFORMATION REQUIRED FOR
SAFE USE IS NOT INCLUDED IN For further information, please see our
THIS DOCUMENT. BEFORE website, dowcorning.com or consult
HANDLING, READ PRODUCT your local Dow Corning
AND MATERIAL SAFETY DATA representative.
SHEETS AND CONTAINER
LABELS FOR SAFE USE, LIMITED WARRANTY
PHYSICAL AND HEALTH INFORMATION – PLEASE
HAZARD INFORMATION. THE READ CAREFULLY
MATERIAL SAFETY DATA The information contained herein is
SHEET IS AVAILABLE ON THE offered in good faith and is believed to
DOW CORNING WEBSITE AT be accurate. However, because
DOW CORNING.COM, OR FROM conditions and methods of use of our
YOUR DOW CORNING SALES products are beyond our control, this
APPLICATION ENGINEER, OR information should not be used in
DISTRIBUTOR, OR BY CALLING substitution for customer’s tests to
DOW CORNING CUSTOMER ensure that our products are safe,
SERVICE. effective, and fully satisfactory for the
intended end use. Suggestions of use
USABLE LIFE AND shall not be taken as inducements to
STORAGE infringe any patent.
When stored at or below 30°C in the
original unopened containers,
Dow Corning is a registered trademark of Dow Corning Corporation.
We help you invent the future. is a trademark of Dow Corning Corporation.
2014; January 23 XIAMETER is a registered trademark of Dow Corning Corporation.
Form No. 10-0847L-01 © 1998 - 2014 Dow Corning Corporation. All rights reserved.
3
Typical Examples of Joint Design Figure 2A: Transom detail. Figure 2B: A mullion detail.
Examples of structural glazing
Figure 2: System for 2-sided designs: 2-sided design (installed on
structural glazing. site).

Figure 3B: A mullion detail.

Figure 3: System for 4-sided Figure 3A: Transom detail.
structural glazing. Examples of structural glazing
designs: 4-sided design (factory
glazed).

Legend
Figure 4: Design with supported Figure 5: Design with stepped 1. Insulating glass unit
insulating glass unit. insulating glass unit. 2. Silicone structural seal (Dow Corning 895
Structural Glazing Sealant)
3. Silicone sealant spacer block
4. Silicone setting block
5. Aluminum profile
6. Backer rod
7. Structural sealant width
8. Structural sealant bite
9. Weatherseal dimension
10. Silicone weatherseal (Dow Corning® 791
Silicone Weatherproofing Sealant)
11. Silicone insulating glass seal
(Dow Corning® 3362 Insulating Glass
Sealant)

Dow Corning is a registered trademark of Dow Corning Corporation.

We help you invent the future. is a trademark of Dow Corning Corporation.
2014; January 23 XIAMETER is a registered trademark of Dow Corning Corporation.
Form No. 10-0847L-01 © 1998 - 2014 Dow Corning Corporation. All rights reserved.
4