CAUTION: All statements and technical information in this document are based on tests or data that Royal believes is reli-
able. However, Royal does not warrant or guarantee the accuracy or completeness of this information. The user has sole
knowledge and control of factors that can affect the performance of Royal’s products in the user’s intended application. It
is the user’s responsibility to conduct tests to determine the compatibility of Royal’s product with the design, structure, and
materials of the user’s end product and the suitability of Royal’s product for the user’s method of application and intended
use. The user assumes all risk and liability arising out of such use.
7155-3
Heat Expandable Sealer
Description
7155-3 is a die cut, rubber-based sealer, which expands
with the application of heat to form a fl exible, closed cell
foam. It has excellent adhesion to gal-vanized and
primed steel and is recommended for use between
metal components to create a watertight seal.
Features Benefi ts
Die Cuttable Used for many different sizes
Expandable Fills gaps and voids while
creating a closed cell foam
Available Tacky
Coextrusion
Aids in assembly operations
by keeping part in place
prior to bake process
Basic Use
Used to fi ll gaps between metal parts, to form a seal, and
to dampen sound and vibration in a variety of transporta-
tion OEM applications.
Packaging
7155-3 is typically sold in roll form with a tacky
coextrusion to aid in the assembly process. Con-tact
your Royal representative for specifi c sizes.
Storage and Shelf Life
Store material in original unopened packaging in a cool
dry area. Shelf life is 24 months when stored as recom-
mended.
Health & Safety
Prior to working with this or any product consult product
label and Safety Data Sheet (SDS)
for necessary health
and safety precautions.
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Technical Data
Property Typical Value Test Method
Specifi c Gravity 1.05 ASTM D792
Non-Volatile Content
98% Minimum
Volume Increase
- after 15 min @ 121°C
(250°F)
100%
ASTM D792
Water absorption
- after 15min @121°C
(250°F)
<3% LP-463NB-07-01
Shear
Adhesion - after 15min @121°C
(250°F)
MS-CD-466
a. Initial
965kPa (140psi)
24hr @ RT
b. Condensing
Humidity
1030kPa
(149psi)
250hrs @38°C
(100°F) & 100%RH
c. Heat-Aging
1040kPa
(150psi)
250hrs at 79°C
(175°F)
d. Salt Spray
900kPa (130psi)
ASTM B1 17
Low Temperature
Flexibility
No cracking or
adhesion loss at
-29°C (-20°F)
MS-CD-466
1” mandrel
NOTE: The foregoing information is published as general information only.
The listed properties and performance characteristics are approximate
values and are not to be interpreted as manufacturing specifi cations.
WARRANTY: Royal warrants its products to conform to Royal’s specifi cations at the time of sale when tested according to Royal stan-
dards. If a product is proven to be defective when tested according to Royal standards, Royal will, at its option, refund the purchase price
or replace or repair the defective product. THIS LIMITED WARRANTY IS THE BUYERS SOLE AND EXCLUSIVE REMEDY AGAINST
ROYAL AND IS IN LIEU OF ANY AND ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, ANY
IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. In no event shall Royal be liable for any
special, incidental, consequential, or punitive damages arising out of any claims whether based on negligence, contract, warranty, strict
liability or otherwise.
P.O. Box 457, 4401 Page Avenue Michigan Center, MI 49254 Phone: (800) 248-4010 Fax: (517) 764-6697 www.royaladhesives.com
ROYAL
AND
IS
IN
LIEU
OF
ANY
AND
ALL
OTHER
WARRANTIE
S,
EXPRESS
OR
IMPLIE
D,
INCLUDING
,
BUT
NOT
LIMITED
TO
,
ANY
IMPLIED WARRANTY
O
F MERCHANTABILITY
O
R FITNESS F
O
R A PARTICULAR PURP
O
SE. In no event shall Ro
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al be liable for an
y
s
pecial, incidental, consequential, or punitive dama
g
es arisin
g
out of an
y
claims whether based on ne
g
li
g
ence, contract, warrant
y
, strict
l
iabilit
y
or otherwise.
Page. 2/2