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HS140-II
Howell
HM-HS140-II
Silicone Roof Coating
HM-HS140 is a 100% silicone-based, single-component coating offering durable, watertight, and weatherproof protection for various roof types. It adheres to most substrates without a primer and meets ASTM D6694 standards for reliable performance.
Cost-Effective: Achieve the benefits at half the cost of a roof replacement.
Hassle-Free Installation: Simple and efficient application process.
Guaranteed Performance: Up to 20-year leak-free warranty.
Weather Resistant: Resists rain wash-off, against ponding water, providing greater flexibility during installation.
Eco-Friendly: Environmentally conscious solution for sustainable roofing.
Seamless Protection: Forms a completely seamless and durable membrane.
UV Resistant: Maintains performance without chalking or degrading under UV exposure.
Save Money:
A PM silicone roof coating costs approximately 50% less than a full roof replacement. Why?
No need for roof tear-off, cutting project time in half.
Requires only half the crew size compared to a replacement.
Half the time, half the crew, half the cost.
Effortless Installation:
Follow an easy three-step process:
Clean, prep, and coat.
In most cases, primers aren’t required.
The applied coating resists washing off during rain.
Exceptional Warranties:
Choose watertight warranties of 5, 10, 15, or 20 years for lasting peace of mind.
Environmentally Friendly:
Howell silicone roof coatings offer multiple eco-friendly benefits:
Low VOC emissions.
Reflects up to 88% of UV rays, reducing energy costs and extending HVAC lifespans.
Prevents tons of roofing waste from ending up in landfills.
Can be recoated when needed, reducing waste further.
Seamless Protection:
Since most leaks occur at seams, a seamless coating eliminates these weak points. Routine maintenance will significantly extend the lifespan of the coating.
Code# | HS140-II | |
Shelf Life | 720Days （2 years） | |
Caractristicas de curado al aire 25℃ y 50%HR (Properties before curing under standard conditions） | ||
Specific Gravity(Gardner Cup)proportion | 1.20±0.01 | |
Stickiness mpa.s | 14000 | |
Appearance /Color | Viscous liquid (Black/Grey/white...etc.) | |
Tack-Free Time(surface drying) | 30-45min | |
Curing speed mm/24h | ≥2.5mm | |
Curado despues de 72horas a 25℃ y 50%HR (Performance after 72 hours of curing under standard conditions） | ||
Tensile Strength (tensile strength） | ≥1.5Mpa | |
Elongation(elongation) | ≥150% | |
Hardness Shore A | 30-45 | |
VOC% | ≤5% | |
Bonding strength, N/mm | with polyurethane foam | ≥2.0 |
Asphalt | ≥2.0 | |
Concrete | ≥2.0 | |
Anti-corrosion paint | ≥2.0 | |
Aluminum Alloy Sheet | ≥2.0 | |
Galvanized sheet | ≥2.0 | |
Conclusion | The batch of products 121 indicators meet the standard, judged qualified! | |
Versatile for Various Roof Types and Materials
Compatible Roof Types
Built-Up Roofing (BUR) & Modified Bitumen (MB)
Single-Ply Membranes: TPO, EPDM, PVC, Hypalon®
Spray Polyurethane Foam (SPF), Metal, Concrete, and Previously Coated Roofs
Concrete Roofs-
Previously Coated Roofs: Ideal for recoating applications
Suitable for flat, low-slope, and steep-slope commercial roofs, these systems offer unmatched flexibility and performance.
Can be packaged according to customer requirements
Store in a ventilated and cool place (4∽27℃), shelf life of one year;
HM-HS140-II
Silicone Roof Coating
HM-HS140 is a 100% silicone-based, single-component coating offering durable, watertight, and weatherproof protection for various roof types. It adheres to most substrates without a primer and meets ASTM D6694 standards for reliable performance.
Cost-Effective: Achieve the benefits at half the cost of a roof replacement.
Hassle-Free Installation: Simple and efficient application process.
Guaranteed Performance: Up to 20-year leak-free warranty.
Weather Resistant: Resists rain wash-off, against ponding water, providing greater flexibility during installation.
Eco-Friendly: Environmentally conscious solution for sustainable roofing.
Seamless Protection: Forms a completely seamless and durable membrane.
UV Resistant: Maintains performance without chalking or degrading under UV exposure.
Save Money:
A PM silicone roof coating costs approximately 50% less than a full roof replacement. Why?
No need for roof tear-off, cutting project time in half.
Requires only half the crew size compared to a replacement.
Half the time, half the crew, half the cost.
Effortless Installation:
Follow an easy three-step process:
Clean, prep, and coat.
In most cases, primers aren’t required.
The applied coating resists washing off during rain.
Exceptional Warranties:
Choose watertight warranties of 5, 10, 15, or 20 years for lasting peace of mind.
Environmentally Friendly:
Howell silicone roof coatings offer multiple eco-friendly benefits:
Low VOC emissions.
Reflects up to 88% of UV rays, reducing energy costs and extending HVAC lifespans.
Prevents tons of roofing waste from ending up in landfills.
Can be recoated when needed, reducing waste further.
Seamless Protection:
Since most leaks occur at seams, a seamless coating eliminates these weak points. Routine maintenance will significantly extend the lifespan of the coating.
Code# | HS140-II | |
Shelf Life | 720Days （2 years） | |
Caractristicas de curado al aire 25℃ y 50%HR (Properties before curing under standard conditions） | ||
Specific Gravity(Gardner Cup)proportion | 1.20±0.01 | |
Stickiness mpa.s | 14000 | |
Appearance /Color | Viscous liquid (Black/Grey/white...etc.) | |
Tack-Free Time(surface drying) | 30-45min | |
Curing speed mm/24h | ≥2.5mm | |
Curado despues de 72horas a 25℃ y 50%HR (Performance after 72 hours of curing under standard conditions） | ||
Tensile Strength (tensile strength） | ≥1.5Mpa | |
Elongation(elongation) | ≥150% | |
Hardness Shore A | 30-45 | |
VOC% | ≤5% | |
Bonding strength, N/mm | with polyurethane foam | ≥2.0 |
Asphalt | ≥2.0 | |
Concrete | ≥2.0 | |
Anti-corrosion paint | ≥2.0 | |
Aluminum Alloy Sheet | ≥2.0 | |
Galvanized sheet | ≥2.0 | |
Conclusion | The batch of products 121 indicators meet the standard, judged qualified! | |
Versatile for Various Roof Types and Materials
Compatible Roof Types
Built-Up Roofing (BUR) & Modified Bitumen (MB)
Single-Ply Membranes: TPO, EPDM, PVC, Hypalon®
Spray Polyurethane Foam (SPF), Metal, Concrete, and Previously Coated Roofs
Concrete Roofs-
Previously Coated Roofs: Ideal for recoating applications
Suitable for flat, low-slope, and steep-slope commercial roofs, these systems offer unmatched flexibility and performance.
Can be packaged according to customer requirements
Store in a ventilated and cool place (4∽27℃), shelf life of one year;
