SikaBiresin
AP0
0
4
1 /
2
PRODUCT DATA SHEET
SikaBiresin AP004
Version 01.01 (07 – 2024), en_US
PRODUCT DATA SHEET
SikaBiresin AP004 (Formerly APF-4)
Fast-Setting Polyester Filler
TYPICAL PHYSICAL PROPERTIES (FOR FURTHER VALUES SEE SAFETY DATA SHEET)
DESCRIPTION
SikaBiresin
AP004 is a fast-setting,
premium-performance, polyester-based
industrial filler paste. It is specifically
formulated for filling, fairing, and repair
applications and can be used in service
temperatures up to 285 F (140 C).
SikaBiresin
AP004 bonds to a wide variety
of materials including wood, aluminum,
cast iron, steel , copper, bronze, fiberglass
(FRP and SMC), honeycomb paneling and
urethane foam. Once cured, it forms a
rigid, strong surface which can be
machined, sanded, filed or scraped to a
feathered edge. SikaBiresin AP004
accepts virtually all types of coatings and
decorative film without any blush or
discoloration. In its mixed, uncured state,
SikaBiresin AP004 has a smooth, creamy
consistency that enables the user to make
quick repairs with minimal air entrapment.
PRODUCT BENEFITS
– Excellent adhesion
– Very fast setting
– Easy to use
– Minimal shrinkage
– Excellent finishing / machinability
– Can be used in service temperatures up to
285 F (140 C)
AREAS OF APPLICATION
SikaBiresin AP004 is suitable for
filling, fairing, and repair applications in a wide range of industries.
Typical applications include filling
surface porosity in composites panels
and structures, along with FRP
composite repair.
Tests with actual materials and conditions
have to be performed to ensure satisfactory
performance.
Properties
SikaBiresin AP004 (A)
Resin
Cream
Hardener (B)
Composition Polyester Benzoyl peroxide
Mix ratio by weight 100 2
Aspect Thixotropic paste Liquid paste
Color White, gray White, black, red
Color (mixed) Various
Density at 77 F (25 C) (mixed) 13.6 (1.63) lbs./gal (g/cc)
Pot life (100g) at 77 F (25 C) 4.0 7.0 Minutes
Volumetric Weight 0.059 lbs/in
3
(1.63 g/cc)
SikaBiresin
AP0
0
4
2
/
2
Sika Corporation
30800 Stephenson Highway
Madison Heights, MI 48071
U.S.A.
Telephone: +1 248- 577-0020
Email: tsmh@us.sika.com
www.sikausa.com
TYPICAL MECHANICAL AND THERMAL PROPERTIES
Cure schedule: 7 days at 77 F (25 C)
PROCESSING
Surface Preparation and Application
To ensure optimal adhesion, the area to be
filled or repaired should be thoroughly
cleaned, sanded/roughened, re-cleaned, and
allowed to dry prior to application.
Mixing Instructions
Stir contents of resin can thoroughly using a
spatula or putty knife. Place the required
amount of filler and cream hardener on a
disposable clean surface. Mix 100 parts paste
to 2 parts cream hardener by weight. Set up
time of mix at room temperature will be 10-
20 minutes
Application
The mixed SikaBiresin
AP004 should be
applied and worked into the area, taking
caution to avoid air entrapment. After curing
to a tack- free state, the material can be
sanded and finished as needed.
Normal health and safety precautions should be
observed when handling these products:
Ensure adequate ventilation
Wear gloves, glasses, and protective clothes
For further information, please consult the Safety
Data Sheets
STORAGE CONDITIONS
Product shelf life of SikaBiresin AP0 04 (A) is
12 months when stored in original unopened
containers between 65 77 F (15 25 C).
Shelf life of Cream Hardener (B) is
18 months when stored in original unopened
containers between 65 77 F (15 25 C).
Keep containers tightly closed. Polyester
resin contains filler which has the potential to
separate in time, please re-homogenize prior
to use.
PACKAGING INFORMATION
Packaging information is available upon
request. Please contact your local Sika sales
representative.
FURTHER INFORMATION
Advice on specific applications will be given on
request. To contact Sika Corporation s Industry
Technical Services Department, send an email to
tsmh@us.sika.com. Copies of Safety Data
Sheets and Product Data Sheets are available
upon request.
BASIS OF PRODUCT DATA
All technical data stated in this document are
based on laboratory tests. Actual measured data
may vary due to circumstances beyond our
control.
ENVIRONMENTAL, HEALTH AND SAFETY
For further information and advice regarding
transportation, handling, storage and disposal of
chemical products, user should refer to the
actual Safety Data Sheets containing physical,
environmental, toxicological and other safety
related data. User must read the current
actual Safety Data Sheets before using any
products. In case of an emergency, call
CHEMTREC at 1-800-424-9300, International
03-527-3887.
LEGAL DISCLAIMER
Prior to each use of any product of Sika Corporation,
its subsidiaries or affiliates ( SIKA ), the user must
always read and follow the warnings and
instructions on the product s most current product
label, Product Data Sheet and Safety Data Sheet
which are available at usa.sika.com or by contacting
SIKA s Technical Service Department via email at
tsmh@us.sika.com. Nothing contained in any SIKA
literature or materials relieves the user of the
obligation to read and follow the warnings and
instructions for each SIKA product as set forth in the
current product label, Product Data Sheet and
Safety Data Sheet prior to use of the SIKA product.
SIKA warrants this product for one year from date
of installation to be free from manufacturing
defects and to meet the technical properties on the
current Product Data Sheet if used as directed
within the product s shelf life. User determines
suitability of product for intended use and assumes
all risks. User s and/or buyer s sole remedy shall be
limited to the purchase price or replacement of this
product exclusive of any labor costs. NO OTHER
WARRANTIES EXPRESS OR IMPLIED SHALL APPLY
INCLUDING ANY WARRANTY OF
MERCHANTABILITY OR FITNESS FOR A
PARTICULAR PURPOSE. SIKA SHALL NOT BE LIABLE
UNDER ANY LEGAL THEORY FOR SPECIAL OR
CONSEQUENTIAL DAMAGES. SIKA SHALL NOT BE
RESPONSIBLE FOR THE USE OF THIS PRODUCT IN A
MANNER TO INFRINGE ON ANY PATENT OR ANY
OTHER INTELLECTUAL PROPERTY RIGHTS HELD BY
OTHERS. Sale of SIKA products are subject to the
Terms and Conditions of Sale which are available at
https://usa.sika.com/en/group/SikaCorp/termsand
conditions.html or by calling +1 800-933-7452.
Properties, Test Method
SikaBiresin AP004 (A)
Resin
Cream Hardener (B)
Hardness, shore D ASTM D2240 89
Flexural strength, ASTM D790
6,000 psi (41 Mpa)
Tensile strength, ASTM D638
2,100 psi (14 Mpa)
Compressive Strength, ASTM D695
6,200 psi (43 Mpa)
Tg per TMA, ASTM E-1545 128 F (53 C )
Peak service temperature 285 F (140 C)