KST040312 Uniflex Fibered Asphalt Emulsion Roof Coating, Black
- Fibered asphalt emulsion
- Sold by the pail
The poly-fiber reinforced asphalt emulsion, in black. The manufacturer lists it for extremely dried-out or heavily alligatored smooth built-up and modified bitumen roofs, ahead of an elastomeric or aluminum coating, and lists it for use with reinforcing fabric.
Key benefits
- Poly-fiber reinforced asphalt emulsion, the layer the manufacturer lists before a coating on a dried-out or alligatored asphaltic roof
- Listed for use with fabric, so splits, laps and flashings can be three-coursed while the emulsion is going down
- Manufacturer-stated to ASTM D1227 Type II
- Stocked in 5-gallon pails, with 55-gallon drums quoted with the order
- The non-fibered twin, KST040314, covers the same roofs where fiber is not wanted
Priced per project
Send the quantity and the delivery ZIP. We reply within one business day.
Request a quote Ask a question about this product
In stock Confirm the quote, and your order ships in 1–3 business days from confirmation.
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Overview
KST040312 is the poly-fiber reinforced asphalt emulsion, in black. It is not a finish coat. The manufacturer lists it for extremely dried-out or heavily alligatored smooth built-up and modified bitumen roofs, ahead of an elastomeric or aluminum coating, and gives its standard as ASTM D1227 Type II. On the right roof it is the step that makes the coating above it worth buying.
The fiber is the difference between this and its twin. Both emulsions cover the same surfaces, both are listed for use with reinforcing fabric, and both come in pails and drums; this one carries poly fiber and KST040314 does not. Because the emulsion is listed for fabric, the splits, laps and flashings can be three-coursed while the field is going down instead of in a separate visit. Rates, film build, cure and the wait before the coating that follows all come from the manufacturer’s product data sheet.
Application
- Start on a roof that is clean, dry and sound underneath. Wash the field, clear ponded silt and loose surfacing, and cut out anything that has failed.
- Detail before the field: splits, open laps, flashings and penetrations three-coursed with polyester fabric bedded in the emulsion.
- Prepare the substrate as the manufacturer’s product data sheet lists for a dried-out or alligatored asphaltic roof.
- Apply at the rate and film build the data sheet states, and leave the cure time it requires before the coating above it goes on.
- Keep the product data sheet and the safety data sheet on site. They set the conditions the emulsion may be applied in.
Ordering
KST040312 comes in 5-gallon pails and 55-gallon drums. Stocked pack sizes ship in 1 to 3 business days; anything not on the shelf is ordered in and runs 1 to 2 weeks. Drums, pallet quantities and freight go through the quote form, and every price is quoted per project rather than printed here. Send the part numbers, the quantities, the roof area, the site ZIP code and your dates, and we reply with one price covering the emulsion, the fabric and whatever coating goes over it.
Where it's used
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Heavily alligatored smooth BUR
Smooth built-up roofs whose surface has crazed and lost its flexibility, which the manufacturer names as this product's job, ahead of the coating that follows.
-
Dried-out modified bitumen
Modified bitumen roofs that have dried out to the point where a coating alone is not what the manufacturer lists for them.
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Three-course detail work
Splits, open laps, flashings and penetrations reinforced with polyester fabric bedded in the emulsion, which this product is listed for.
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Ahead of an aluminum coating
Asphaltic roofs being resurfaced in silver, where the emulsion goes on first and a fibered or non-fibered aluminum coating follows.
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Ahead of an elastomeric system
Roofs heading for a white or colored elastomeric finish, where the manufacturer lists the emulsion before the base coat and finish coat.
Specifications
| Manufacturer | Sherwin-Williams (Uniflex line) |
|---|---|
| Part number | KST040312 |
| Color | Black |
| Pack sizes | 5-gallon pail, 55-gallon drum |
| Technology | Asphalt emulsion, poly-fiber reinforced |
|---|---|
| Standard | ASTM D1227 Type II |
| Recommended substrates | Extremely dried-out or heavily alligatored smooth built-up and modified bitumen roofs, ahead of an elastomeric or aluminum coating |
| SKU | CY-KST040312 |
|---|---|
| Sold by | Pail |
| Lead time | In stock · 1–3 business days |
| Warranty | Goods are warranted to match their description and to be free of manufacturing defects when delivered; any manufacturer system warranty is issued by the manufacturer under its own terms |
Delivery and lead time
- Ships in 1–3 business days from order confirmation. Your quote states the delivery window before you commit.
- Pails, rolls and cartons ship by parcel or pallet; drums and totes by freight to your site. Tell us about lift-gate, access or unloading needs when you ask for a quote.
How to order
- Send the quantity, the site ZIP and your timing.
- A person sends one written quote with the delivered price and the ship window. We reply within one business day.
- Confirm the quote, and your order ships in 1–3 business days from confirmation.
Questions
- Is an asphalt emulsion a finish coat?
- Not in this range. The manufacturer lists both emulsions ahead of an elastomeric or aluminum coating on dried-out or alligatored roofs. What goes over them, and how long after, is set out in the manufacturer's product data sheet.
- Fibered or non-fibered?
- KST040312 is poly-fiber reinforced and KST040314 is not. Both are black, both come in 5-gallon pails and 55-gallon drums, both carry the same listed use and both are listed for use with fabric. The data sheet and the specification decide which one the job buys.
- Can I reinforce with fabric?
- Yes. This product is listed for use with fabric, and three-coursing with polyester fabric is how splits, laps and flashings get detailed. The widths are 6 in, 12 in and 40 in, in Reinforcing fabrics and seam tapes.
- Does my roof actually need it?
- The manufacturer's wording is extremely dried-out or heavily alligatored. A roof that is only weathered may not need an emulsion at all. Send the roof type, the square footage and a description of the condition with the quote request and we read the data sheet against what you describe.
- How much material will it take?
- The manufacturer's product data sheet states the coverage rate and the film build. Send the square footage and the condition and the quote works the pails or drums out for that roof.
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Trade & projects
Pricing a whole roof, or ordering drums and totes?