Technical Specifications

Vulkem® 45SSL
Semi-Self-Leveling, Single-Component, Polyurethane Sealant
www.tremcosealants.com
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Product Description
Vulkem® 45SSL is a semi-self-leveling, single-component, moisture-curing,
low-modulus, polyurethane sealant.
Basic Uses
Vulkem 45SSL is formulated for use in expansion joints in sidewalks,
swimming pool decks, plazas, floors and any other horizontal surfaces with
slopes up to 6% (e.g. 1' rise for every 16' run).
Features and Benefits
• Vulkem 45SSL is a traffic rated, pourable, semi-self-leveling sealant with
exceptional primerless adhesion and movement capability.
• Vulkem 45SSL is suitable for continuous immersion in non-chlorinated
water.
• The Vulkem 45SSL technology provides the sealant with greater UV
resistance and will not out gas.
• Vulkem 45SSL provides exceptional wear and tear resistance required in
high traffic areas.
• Jet Fuel Resistant
• Formulated with an innovative polymer technology, similar to TREMproof®
250GC and Dymonic® 100, Vulkem 45SSL is highly versatile and has a
unique capability to adhere to damp or green concrete.
Availability
Vulkem 45SSL is immediately available from your local Tremco Sales
Representative, distributor, or warehouse.
Coverage Rates
308' of joint per gallon for a 1/4" x 1/4" (6 mm x 6 mm) joint. For specific
coverage rates that include joint size, and usage efficiencies, visit our website
usage calculator at www.tremcosealants.com
Packaging
1-qt (890-mL) cartridges
2-gal (7.6-L) pails
5-gal (18.9-L) pails
55-gal (208-L) drums
Colors
Black, Buff, Gray, Limestone, White.
Shelf Life
1 year when stored at 40 to 110 °F (5 to 43 °C)
Storage
Store Vulkem 45SSL in original, undamaged packaging in a clean, dry,
protected location with temperatures between 40 to 110 ˚F (5 to 43 ˚C).
Applicable Standards
Vulkem 45SSL meets or exceeds the requirements of the following
specifications:
• ASTM C920, Type S, Grade P, Class 35, Use T, M, A, O and I (Class 2)
• CAN/CGSB 19.13-M87, MC-1-25-B-N
• ASTM E 1966/UL 2079
Fire Rated Systems
FF-D-1062, and FW-D-1058
Limitations
• Use with adequate ventilation.
• Always utilize the accompanying MSDS for information on Personal
Protective Equipment (PPE) and Health Hazards.
• Vulkem 45SSL is not recommended for use in chlorinated, potable, heavy
or waste water.
• Although Vulkem 45SSL is paintable, this does not imply adhesion to and
compatibility with all paints. Please refer to Tremco Technical Bulletin No.
S-09-05 for more information.
Substrate Preparation
Surfaces must be sound and clean. All release agents, existing
waterproofing, dust, loose mortar, paints, other finishes or field applied
coating must be removed. This can be accomplished with a thorough wire
brushing, grinding, sandblasting, or solvent washing, depending on the
contamination.
Tremco recommends that surface temperatures be 40 ˚F (5 ˚C) or above at
the time the sealant is applied. If sealant must be applied in temperatures
below 40 ˚F, please refer to the Tremco Technical Bulletin for Applying
Sealants in Cold Conditions (No. S-08-44 rev 1) that can be found on our
website at www.tremcosealants.com
Priming
Vulkem 45SSL typically adheres to common construction substrates without
primers. However, Tremco always recommends that a mock-up or field
adhesion test be performed on the actual materials being used on the job to
verify the need for a primer, proper cleaning and prep requirements. A
description of the field adhesion test can be found in appendix X1 of ASTM
C1193, Standard Guide for Use of Joint Sealants.
Where deemed necessary, use Vulkem® Primer #191 Low-VOC QD on
porous substrates and TREMprime® Non-Porous Primer for metals or
plastics.
Application
Vulkem 45SSL is easy to apply with conventional caulking equipment. Ensure
that the backer rod is properly friction-fitted and any primers have been
applied.
Fill the joint completely with a proper width-to-depth ratio, and then tool to
ensure intimate contact of sealant with joint substrates.
Dry tooling is always preferred, although compatible wetting agents can be
used in limited amounts to slick the spatula if needed after an initial pass.
For a cleaner finish, mask the sides of the joint with tape prior to filling.
Joint Design
Vulkem 45SSL may be used in horizontal joints designed in accordance with
accepted architectural/engineering practices. Joint width should be 4 times
anticipated movement but not less than 1/4" (6 mm).
Joint Backing
Polyethylene backer rod is recommended as joint backing to control sealant
depth and ensure intimate contact of sealant with joint substrate when
tooling. Where depth of joint will prevent the use of backer rod, an adhesive
backed polyethylene tape (bond breaker tape) should be used to prevent
three-sided adhesion. All backing should be dry at the time of sealant
application.