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ALDOCOAT 397

1 of 5 products in this brand
ALDOCOAT 397 is a high solid, low VOC, one-part silicone elastomeric coating specifically designed for use in roofing applications as a protective coating over a variety of roofing substrates. Once cured this liquid applied silicone coating provides a durable, seamless, flexible, waterproof membrane that resists lateral movement, shear and will allow for normal expansion and contraction. It provides greater UV protection than similar silicone coatings and offers increased resistance to moisture penetration and excellent long term protection through exceptional weatherability properties.

Product Type: 1K (1 component) Coating

Features: Durable, Excellent Substrate Adhesion, Flexible, Good UV Protection, Good Weather Stability, High Moisture Resistance, High Solids Content, Long Term Protection, Low VOC

Application Area: Roofing Membranes

Compatible Substrates & Surfaces: Plastics, Polyurethane

Application Method: Brush, Roller, Spray

Chemical Family: Silicon-based Compounds

Technical Data SheetSafety Data Sheet
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Knowde Enhanced TDS

Identification & Functionality

Chemical Family

Silicon-based Compounds

Product Type

1K (1 component) Coating

Technologies

Ready-to-Use Products

Product Families

Ready-to-Use Products — Paints & Coatings

Protective Coatings

Features & Benefits

Ready-to-Use Product Features

Durable,

Excellent Substrate Adhesion,

Flexible,

Good UV Protection,

Good Weather Stability,

High Moisture Resistance,

High Solids Content,

Long Term Protection,

Low VOC

Applications & Uses

Application Area

Roofing Membranes

Application Method

Brush,

Roller,

Spray

Compatible Substrates & Surfaces

Plastics,

Polyurethane

Uses
  • ALDOCOAT 397 was specifically developed as a protective coating for EPDM, TPO, PVC, modified bitumen, and smooth BUR.
  • With excellent adhesion and durability, ALDOCOAT 397 is proven to provide excellent UV protection and long term durability for spray polyurethane foam.
Application Instructions
  • ALDOCOAT 397 may be applied by medium nap rollers, soft brushes or high pressure airless spray equipment. Apply ALDOCOAT 397 only to clean, dry, sound surfaces free of loose particles or other foreign matter.
  • For best results, ambient temperature should be between 50 - 90 °F. Higher temperatures will shorten the cure time and working time for proper application of granules before the material has skinned. Lower temperatures will lengthen the skinover, tack free and ultimate cure time. Sudden temperature declines may also result in dew formation on surfaces, which can prevent adhesion development.
  • For best results, relative humidity should be above 20%. Lower humidity will slow the cure time significantly.
  • Apply ALDOCOAT 397 at the rate of 1.25 gallons per 100 sq. ft.
  • Minimum dry mil thickness shall be above 20 mils.
  • Two passes of silicone and a primer coat may be required for some applications and warranty programs.
Clean Up Solvent

Aldo Thinner

Properties

Typical Properties
ValueUnitsTest Method / Conditions
Total Solids (Volume)94 - 98-%
Weight10.8-lbs/gal
Flash Point160.0-°F
Viscosity4800 - 9000-cPs
Elongation (Initial)199 - 299-%
Hardness45 - 55-Shore A
Tensile Strength275 - 375-psi
Permeability4.2-perms
Service Temperature-50 to 200-º F
ThinnerNot Recommended--
Solar Reflectance87.0-%
Thermal Emittance89.0-%
Cure Time2.0 - 8.0-Hours
Tack Free1.0-Hours
Skin Over30.0-min
VOCmax. 100-g/l

Storage & Handling

Shelf Life
6 Months (35°F - 75°F)
Storage & Handling
  • Avoid contamination in sealed containers.
  • Store away from heat and sources of ignition.
  • Do not inhale vapor or mist; do not get on skin, in eyes or on clothing.