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PRODUCT DESRIPTION

PRIMARY USES

L&L 300 Mastic is a high-build, waterborne, elastomeric barrier coating. Its unique blend of premium acrylic resins and pigments combine to form a durable, mildew-resistant film with exceptional adhesion and flexibility. L&L 300 is a breathing mastic which allows damaging substrate moisture to escape, while protecting against ultra-violet, water and air-flow intrusion.

4 Architectural restoration.

4 Seals and fills interior and exterior masonry, stucco, concrete and previously painted surfaces

4 Above-grade waterproofing and damp-proofing.

4 Air-flow management (e.g. in nuclear power facilities)

4 VOC compliant.

4 Fast Drying.

4 Single Component

4 Contains no lead, mercury, or asbestos

4 Plywood and particle board primer/sealer.

4 Seals dry wall and sheet rock

4 Primes and upgrades amny friable thermal insulation materials.

4 Fumigation containment in tobacco storage warehouses.

4 Dust control: Seals joints and seams on conveyors, dust collectors, elevators and other material-handling equipment

4 Provides exceptional adhesion and flexibility when applied to: Primed ferrous and non-ferrous metal, galvanized steel, masonry, wood, fiberglass, transite and most construction, insulation and roofing materials.

4 Promotes adhesion on hard-to-stick-to materials.

4 Seals porous surfaces, requiring less finish coatings.

4 Easy to apply and cleans up with soap and water.

4 Reinforceable with L&L Polyester mat, Polyester mesh and Dynel cloth.

4 It's Elastomeric: Capable of stretching in excess of 12 times its original size and then returning.

4 Base and saturant coats in the L&L Moisture and Air-Flow Reinforced Systems.

TYPICAL PROPERTIES AND PERFORMANCE

Property

Test Method

Performance

Density

ASTM D1475

8.76 lbs/gal. US

Volume Solids

ASTM D2697

45%

Tensile Elongation

ASTM D2370

>1,260.80%

Water Vapor Permeability

ASTM D1653

.2297 (Perm in.)

Drying Time

ASTM D1640

12.5 Mil Dry Film Thickness + 70° F. 62% Humidity

Dry-to-Touch

1.5 hours

Dry-Through

1.5 hours

Dry-to-Recoat

1.5 hours

Application Temp. Range

+ 40°F. - +125°F.

Service Temperature Range

+20°F. - +200°F.

All values given are test averages. Actual value may vary (+/-) 3%.

4 "Light" brush, roller & airless spray grade

4 "Standard" brush, roller & airless spray grade

When choosing viscosity range, consider factors such as surface profile and porosity, required film thickness and application methods.

Contact your L&L Coatings Representative for specific application information and technical assistance.

FLUID HOSE: 3/8" or ½" ID with ¼" ID whip-end section

L&L 163 Primer/Sealer requires no mixing or thinning. Cleans up with soap and water when wet. Xylene required to remove dried material. Protect from freezing. Never apply at temperatures below +40°F. or when freezing temperatures are likely to occur before Primer/Sealer cures. Discontinue application three hours before sunset. Do not apply when rain is likely to occur. Shelf-life: 18 months when stored indoors at +40°F. to +100°F. Keep container sealed when not in use. Read and understand Material Safety Data Sheets before using product.

PACKING / SHIPPING

UNIT

SHIPPING WEIGHT (APPROX.)

Fifty-five gallon drum

524 lbs.

THEORETICAL SPREADING RATE CHART

BRUSH, ROLLER & AIRLESS SPRAY GRADE

Dry Film Thickness

Wet Film Thickness

Ft² Per Gallon

Gallons Per 100 Ft²

1 mil

2.22 mil

722

.1385

2 mil

4.44 mil

361

.277

4 mil

8.88 mil

180.5

.554

6 mil

13.32 mil

120.33

.831

8 mil

17.76 mil

90.25

1.108

10 mil

22.20 mil

72.2

1.385

12 mil

26.64 mil

60.16

1.662

14 mil

31.08 mil

51.57

1.939

16 mil

35.52 mil

45.13

2.215

18 mil

39.96 mil

40.11

2.493

20 mil

44.40 mil

36.10

2.770

Note: The actual spreading rate depends on a number of factors such as: Surface profile and porosity, weather conditions, over-spray and application techniques. Use a wet film thickness gauge at regular intervals during application.