SilFlex

SilFlex
Distributed by: BEST MATERIALS LLC
Ph: 800-474-7570, 602-272-8128 Fax: 602-272-8014
Email: [email protected] www.bestmaterials.com
PRODUCT DATA
9
09 97 23 Elastomeric
Coatings
SILFLEX®
Silicone-modified anti-carbonation
elastomeric waterproof coating
Description
Features
Silflex® is a top-of-the-line waterbased, VOC-compliant, siliconemodified elastomeric coating for
waterproofing exterior surfaces.
It has superior crack-bridging ability
with a total elongation of 700%. It
retards carbonation of concrete. It
complies with Federal Specification
TT-C-555B, Type II.
• Silicone-modified acrylic formula
Recoatable
• Breathable
Allows moisture to escape without damaging
coating
Yield
Benefits
• Carbon-dioxide diffusion resistant
Protects reinforcing steel from corrosion
• Available in 463 colors
Provides color coordination with Sonneborn®
sealants
• Elastomeric properties
Excellent crack bridging
• UV and weather resistant
Excellent color retention; nonyellowing
• Resistant to wind-driven rain
Protects building interiors from moisture
• Water-based; VOC compliant
Environmentally friendly; easy cleanup
A total of 463 colors in the Sonneborn® Color
Portfolio can be created from the 4 tint bases. See
the Popular Palette for Wall Coatings for color
formulas.
Where to Use
APPROXIMATE COVERAGE RATES*
SUBSTRATE FT2/GAL (M2/L)
PER COAT
Troweled stucco
60 – 80 (1.5 – 2.0)
Blown on stucco
50 – 70 (1.2 – 1.7)
Block
50 – 70 (1.2 – 1.7)
Brick
60 – 80 (1.5 – 2.0)
Concrete
80 – 100 (2.0 – 2.5)
*NOTE: Coverage rates are theoretical on
smooth-surfaced, properly primed substrates.
Rates will vary with the texture and porosity
of the substrate.
®
Refer to the Sonneborn Color Portfolio for the most
popular 40 colors. For custom color formulations,
consult BASF.
Texture
Smooth
Shelf Life
See page 3 for Wet and Dry Film
Thickness Chart.
18 months when properly stored.
Packaging
Store in unopened containers in a clean, dry area
and protect from extreme heat and direct sunlight.
Keep material from freezing in the container; do not
store below 35° F (2° C).
5 gallon (18.93 L) pails
Color
Storage
APPLICATION
• New construction, maintenance, or restoration
LOCATION
• Vertical surfaces
• Above grade
• Exterior
SUBSTRATE
• Stucco
• Brick
• Concrete
• CMU
• EIFS
Available in white and four tint bases:
pastel, medium, ultra-deep, and
neutral.
®
SONNEBORN® PRODUCT DATA
SILFLEX®
Technical Data
Test Data
Composition
Silflex® is a silicone-modified 100% acrylic emulsion
coating.
Typical Properties
PROPERTY
VALUE
Weight, lbs/gal (kg/L),
(pastel base)
10.6 (88.3)
Solids by weight, %
55.1
Solids by volume, %
45.7
Viscosity, KU
131
RESULTS
TEST METHODS
Elongation at break, %
784.5
ASTM D 2370
Tensile strength, psi (MPa)
40 (0.28)
ASTM D 2370
Wind-driven rain, (98 mph)
Passes
TT-C-555B
Artificial weathering,
Xenon Arc, 4,000 hrs
No chalking, checking,
cracking, or adhesion loss
Color change: ∆E < 2.6
ASTM G 155
CO2 diffusion resistance,
at 10 dry mils
323,000
8" (203 mm) equivalent
concrete layer
Engelfried
PROPERTY
Water-vapor transmission, perms
Wet
Dry
ASTM D 1653 / ASTM E 96
13
1.62
Dirt pick-up,
at 2 months
92.91
ASTM D 3719
Hiding at 6 wet mils (0.15 mm),
% opacity
99.8
ASTM D 2805
Low-temp flexibility,
1/8" (3.2 mm) mandrel at
-30° F (-34° C)
Passes
ASTM D 522
Test results are averages obtained under laboratory conditions. Reasonable variations can be expected.
How to Apply
Surface Preparation
1. Surface should be clean and sound. Concrete
substrates should have a minimum 28 day cure and
be free of all bond-inhibiting contaminants.
2. High-pressure water blast (or abrasive blast on
hard, dense surfaces) surface to medium grit
sandpaper texture (reference ICRI guide 03732 SP 3).
3. Repair any holes, spalled and damaged concrete
with appropriate BASF Construction Chemicals repair
materials. Remove any protruding concrete
accessories and smooth out any irregularities.
4. Some stains may require chemical removal. Be
sure to neutralize the compounds and rinse with
clean water.
5. Remove any blisters or delaminated areas and
sand edges to smooth rough areas and provide
transition to old paint areas.
6. Check adhesion of old paint using ASTM D 3359,
measuring adhesion by Tape Method A.
7. Treat cracks greater than 1/32” with (brand) Knife
Grade or Brush Grade patching compound. Treat
cracks larger than 1/4” as expansion joints and fill
with appropriate BASF Construction Chemicals
sealant.
Detail work
™
1. Apply NP 1 (see Form No. 1017906) where
appropriate on support columns and other details.
Inspect all expansion joints. Ensure there is no
deteriorated sealant, adhesion loss, or nonelastomeric
caulking in joints. Repair all defective sealant or caulk
with NP 1™ or Sonolastic® 150.
2. Apply and tool a liberal amount of Patching
Compound or form a cant bead of NP 1™ or
Sonolastic® 150 wherever there is change in
direction where 2 walls abut and at column and wall
intersections.
3. If movement is anticipated where dissimilar
substrates join (e.g., stucco and concrete or brick
and block), properly clean the joint and seal with NP
1™ or Sonolastic® 150.
4. Inspect all through-wall penetrations, including
electrical, lighting, signage, plumbing, HVAC, and
fire-sprinkler piping, for a watertight seal. Repair with
NP 1™ or Sonolastic® 150.
5. Inspect all flashings, including cap flashing and
roof flashing for watertight seals. Repair with NP 1™
or Sonolastic® 150.
6. Recaulking of old windows is essential in the
waterproofing and renovation of existing structures.
Inspect perimeter joints and mullions and recaulk
with NP 1™ or Sonolastic® 150 (see Form No.
1017906 or Form No. 1026309) as required. Allow
sealant to cure before proceeding.
7. All stucco and masonry window sills (primed,
if required) should receive a coat of brush-grade
Patching Compound. Create a smooth surface that
drains away from the window.
8. Cracks smaller than hairline can be bridged with
knife-grade or brush-grade Patching Compounds.
9. Chip or grind out nonmoving cracks larger than
hairline. Remove dust and pack with knife-grade
Patching Compound 748. Bridge crack with brushgrade Patching Compound 750. Brush a narrow
band directly into the crack using brush, sponge, or
other means to match substrate texture and reduce
telegraphing of the patches through the finish coat.
On textured substrates, texturized Patching
Compound may be used to minimize the
telegraphing.
SONNEBORN® PRODUCT DATA
SILFLEX®
Yield
Wet and Dry Film Thickness
FT2/GAL (M2/L)
PER COAT
AVERAGE DRY FILM
MILS (MM)
AVERAGE WET FILM
MILS (MM)
50 (1.23)
14 – 15 (0.35 – 0.38)
32 – 33 (0.81 – 0.83)
60 (1.47)
12 – 13 (0.30 – 0.33)
26 – 27 (0.66 – 0.68)
80 (1.96)
9 – 10 (0.23 – 0.25)
20 – 21 (0.51 – 0.53)
100 (2.45)
7 – 8 (0.18 – 0.20)
16 – 17 (0.41 – 0.43)
Coverage rates are theoretical on smooth-surfaced, properly primed substrates.
IMPORTANT: Warranty applications require a minimum 12 dry mils (0.30 mm) film thickness.
10. Rout out dynamic or moving cracks to a
minimum of 1/4 by 1/4" (6 by 6 mm), then fill with
NP 1™ or Sonolastic® 150. Once sealant is tooled and
cured, proceed with crack repair as described
previously.
11. Repair cracks and treat back side of parapets in
the same manner as exterior walls, terminating at
roof counter flashings. If top of parapet wall is
exposed masonry, apply a coat of Patching
Compound to create a smooth, well-draining surface.
Recaulking of reglet may be required.
12. Block and other porous surfaces should be
clean, dry, and free of contaminants. Fill concrete
block faces with 1 nylon brush coat of Block Filler
749. Apply by working material into pores, crevices,
and voids. Allow Block Filler to dry, typically 24 – 48
hours, before proceeding. Coverage rate depends on
the porosity and texture of the block surface. Apply
to dry, cured block and mortar only. See product data
sheet for complete application instructions.
Priming
1. Prime all uncoated concrete and masonry
substrates (except those treated with Block Filler
749) as follows: dilute Silflex® 10% with clean water
and apply at the rate of 80 – 100 ft2/gallon
(2.0 – 2.5 m2/L).
2. If an existing coating is properly cleaned and
chalking still occurs, it must be primed with Chalky
Surface Primer VOC. An existing coating totally free
of chalk does not require priming. Allow Chalky
Surface Primer VOC to dry approximately 2 – 4
hours before topcoating.
Application
1. Apply Silflex® finish coat at the appropriate rates
listed under Coverage section.
2. Apply the finish coat in a pinhole-free, continuous
membrane for waterproofing integrity.
ROLLER
For Best Performance
1. Use a medium synthetic-nap (3/4") quality roller
cover for smooth surfaces. Use a long synthetic nap
roller for rough surfaces.
• Apply a 4 by 4 ft (1.2 by 1.2 m) test area to
verify acceptable color and adhesion before
proceeding with any project.
2. Completely saturate the roller and keep it loaded
with the coating to build the required mils. Never dry
roll except for touch up.
• Keep from freezing.
3. Roll the coating in a consistent fanlike pattern to
achieve uniform mil thickness. Stroke variations may
result in an uneven texture.
• Do not apply when surface or ambient
temperatures are less than 40° F (4° C) or are
expected to go below 40° F (4° C) for 12 hours
following application.
• Do not apply coatings in rain, snow, or fog.
BRUSH
• Do not thin Silflex® finish coat.
1. Application by brush is recommended only for
small inaccessible areas, e.g., on touch-ups.
• Hot or dry conditions limit working time and
accelerate drying; cool or damp conditions
extend working time and retard drying and may
require added measures for protection against
wind, dust, dirt, rain, and freezing.
2. Use nylon or synthetic-bristled brushes only.
SPRAY
1. For spray equipment recommendations, refer
to the equipment manufacturer. As a general
guideline, use an airless sprayer providing up
to 3,300 psi (22.75 MPa) pressure and utilize
0.03 – 0.035 tip size.
2. A 10% spray loss should be anticipated.
3. On porous substrates, pinholing is an indication
of entrapped air. Backrolling is required to eliminate
pinholing.
Drying Time
Dry time is 12 hours under normal conditions
(75° F or 24° C and 50% relative humidity). Drying
time will vary with application rates, temperature,
and humidity.
Clean Up
Clean Silflex® from brushes, rollers, sprayers, and
other equipment with water immediately after
application.
• Minimum dry time between coats is 12 hours at
75° F (24° C) and 50% or less relative humidity.
• Color formulas containing organic colorants are
susceptible to fading in exterior applications.
Refer to Sonneborn® tint manual for guidance.
• Ultra-deep and neutral-base colors are mainly
intended for use as accents in small areas only;
they are not guaranteed against fading.
• Slower drying time should be expected when
using ultra-deep or neutral base colors.
• Do not apply to traffic-bearing or flat surfaces.
• On porous substrates, pinholing is an indication
of entrapped air; backroll to eliminate pinholing
(overaggressive backrolling, however, may create
pinholes).
• Iron-rich slag aggregate containing block, mortar,
or brick may cause discoloration through Silflex®.
Consult Technical Service for recommendations.
SONNEBORN® PRODUCT DATA
SILFLEX®
• Make certain the most current versions of
product data sheet and MSDS are being used;
call Customer Service (1-800-433-9517) to
verify the most current version.
First Aid
• Proper application is the responsibility of
the user. Field visits by BASF personnel
are for the purpose of making technical
recommendations only and not for supervising
or providing quality control on the jobsite.
In case of eye contact, flush thoroughly with water for
at least 15 minutes. In case of skin contact, wash
with soap and water. If irritation persists, SEEK
MEDICAL ATTENTION. If inhalation causes physical
discomfort, remove to fresh air. If discomfort persists
or any breathing difficulty occurs, SEEK IMMEDIATE
MEDICAL ATTENTION. If swallowed, SEEK IMMEDIATE
MEDICAL ATTENTION.
Health and Safety
Refer to Material Safety Data Sheet (MSDS) for
further information.
SILFLEX®
Proposition 65
Caution
Silflex® contains ethylene glycol, crystalline
quaitcsilica and zinc oxide.
This product contains materials listed by the state of
California as known to cause cancer and birth
defects, or other reproductive harm.
Risks
VOC Content
May cause eye, skin or respiratory irritation.
Ingestion may cause irritation. INTENTIONAL MISUSE
BY DELIBERATELY INHALING THE CONTENTS MAY BE
HARMFUL OR FATAL.
Contains no more than 0.7 lbs/gal or 84.0 g/L,
less water and exempt solvents.
Precautions
For medical emergencies only,
call ChemTrec (1-800-424-9300).
KEEP OUT OF THE REACH OF CHILDREN. Avoid
contact with eyes, skin and clothing. Avoid breathing
vapor. Use only with adequate ventilation. Use
impervious gloves, eye protection and if the TLV is
exceeded or if used in a poorly ventilated area, use
NIOSH/ MSHA approved respiratory protection. DO
NOT take internally. Keep container closed when not
in use. Wash thoroughly after handling. All label
warnings must be observed until container is
commercially cleaned or reconditioned.
Distributed by: BEST MATERIALS LLC
Ph: 800-474-7570, 602-272-8128 Fax: 602-272-8014
Email: [email protected] www.bestmaterials.com
BASF Construction Chemicals, LLC –
Building Systems
889 Valley Park Drive
Shakopee, MN, 55379
www.BuildingSystems.BASF.com
Customer Service 800-433-9517
Technical Service 800-243-6739
LIMITED WARRANTY NOTICE Every reasonable effort is made to apply BASF exacting standards both in the manufacture of our products and in the information which we issue concerning these products and their use. We
warrant our products to be of good quality and will replace or, at our election, refund the purchase price of any products proved defective. Satisfactory results depend not only upon quality products, but also upon many factors
beyond our control. Therefore, except for such replacement or refund, BASF MAKES NO WARRANTY OR GUARANTEE, EXPRESS OR IMPLIED, INCLUDING WARRANTIES OF FITNESS FOR A PARTICULAR PURPOSE OR
MERCHANTABILITY, RESPECTING ITS PRODUCTS, and BASF shall have no other liability with respect thereto. Any claim regarding product defect must be received in writing within one (1) year from the date of shipment. No claim
will be considered without such written notice or after the specified time interval. User shall determine the suitability of the products for the intended use and assume all risks and liability in connection therewith. Any
authorized change in the printed recommendations concerning the use of our products must bear the signature of the BASF Technical Manager.
This information and all further technical advice are based on BASF’s present knowledge and experience. However, BASF assumes no liability for providing such information and advice including the extent to which such information and
advice may relate to existing third party intellectual property rights, especially patent rights. In particular, BASF disclaims all CONDITIONS AND WARRANTIES, WHETHER EXPRESS OR IMPLIED, INCLUDING THE IMPLIED WARRANTIES
OF FITNESS FOR A PARTICULAR PURPOSE OR MERCHANTABILITY. BASF SHALL NOT BE RESPONSIBLE FOR CONSEQUENTIAL, INDIRECT OR INCIDENTAL DAMAGES (INCLUDING LOSS OF PROFITS) OF ANY KIND. BASF reserves
the right to make any changes according to technological progress or further developments. It is the customer’s responsibility and obligation to carefully inspect and test any incoming goods. Performance of the product(s) described herein
should be verified by testing and carried out only by qualified experts. It is the sole responsibility of the customer to carry out and arrange for any such testing. Reference to trade names used by other companies is neither a recommendation,
nor an endorsement of any product and does not imply that similar products could not be used.
For professional use only. Not for sale to or use by the general public.
Form No. 1017943 9/07
Printed on recycled paper including 10% post-consumer fiber.
© 2007 BASF
Printed in U.S.A.
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