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T E C H N I C A L D A T A S H E E T
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Dura-Life (WL-2823)
100% Acrylic Professional Grade Clear Sealer
Description
Lanco
®
Dura-Life
TM
clear sealer high
technology formulation is a high
performance, professional grade, ready-to-
use water-based sealer designed to seal and
weatherproof roof tiles and shingles.
Product Advantages
Weatherproofs
Water clean-up
Extends life of roof 3-5 years
Enhances color of substrate
Vapor permeable
Dries clear and non-yellowing
Eco-Friendly and low VOC
Excellent water whitening resistance
Mildew resistant
Easy to use
Product Uses
Lanco
®
Dura-Life clear sealer is formulated to
impart long term protection to shingles and
roof tiles. It is ideal for locking down gravel
on shingle roofs. To be used for exterior
applications only.
Technical Data
SOLIDS: 25.00 ± 1% by weight
23.01 ± 1% by volume
V.O.C LEVEL: 92 g/L
WEIGHT / GALLON: 8.5± 0.5 lbs.
pH: 8.5 9.5
FINISH: Soft Gloss
FLASH POINT: Non-flammable
FIRE RATING: Class A
VISCOSITY: Liquid
SUGGESTED FILM THICKNESS, COVERAGE
PER COAT:
150 - 300 sq.ft. per gal. (First Coat)
300 - 400 sq.ft. per gal. (Second Coat)
*Coverage figures do not include surface
porosity, irregularities & material loss due to
application methods.
Base & Tinting Information
Follow tinting requirement specified within
appropriate color formula book, color
matching computer and automatic tinting
equipment.
BASE/COLOR:
WL2821
Clear
The use of deep tinted colors or high
contrast accent colors may require the
addition of one or more finish to achieve
acceptable coverage and hiding results.
Application
Always test each type of surface to ensure
desired results. Let test area dry before
inspection. Stir or shake before applying.
For best results, follow this procedure:
(1) Do not apply sealer when
temperatures are less than 50°. For
expected to drop below 50°F during
the next 6 hours.
(2) Do not apply sealer when
temperatures are higher than 90°F.
(3) Do not apply sealer in rainy
conditions or when rain is expected
within 24 hours.
(4) Application to be made using low
pressure high quality pump sprayer,
brush or 3/8” nap roller. DO NOT
ATOMIZE.
(5) Holding tip 6” 12” from surface
using overlapping spray pattern and
fanning motion at the end of each
horizontal pass.
(6) Entire area being treated is to be
saturated but do not allow sealer to
puddle. If puddling occurs make
sure to disperse puddle area with a
broom or paint roller in order to
avoid any whiting effect which may
occur.
(7) Clean all dips, runs, and overspray
residue while still wet.
(8) Allow product to dry for 24 hours.
MIXING: Always mix thoroughly before and
during application.
THINNING: This product is not to be
thinned.
CLEANUP: Clean all equipment
immediately after use with warm soapy
water. Completely flush all spray equipment
with this solution.
DRYING TIME@ 77
O
F @ 50% RH:
Temperature and humidity dependent.
To touch: 1 hour
To recoat: 4 hours
Technical Compliance:
AIM: PASSES
OTC: PASSES

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