Reinforcing fabrics & seam tapes

KST020385 Uniflex Polyester Reinforcing Fabric, 40 in × 324 ft

  • Reinforcing fabric
  • 40 in × 324 ft
  • Sold by the roll

The broad width of the Uniflex polyester fabric, 40 in across and 324 ft long, one roll per case. It is the roll used when a specification reinforces whole areas rather than single details, laid into a wet coat and coated over.

Key benefits

  • Forty inches covers area rather than a line, which is what a fully reinforced specification asks for
  • One 324 ft roll per case, so 1,000 sq ft of reinforcement takes roughly three rolls before laps and cuts
  • White polyester listed for the three-course method with elastomeric and emulsion coatings from the same range
  • The same fabric as the 6 in KST20385A and 12 in KST20385B, so a job can mix widths without mixing products
  • Stocked with the base coats, emulsions and finish coats that carry it, and quoted on one order

Priced per project

Send the quantity and the delivery ZIP. We reply within one business day.

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In stock Confirm the quote, and your order ships in 1–3 business days from confirmation.

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  • Shipping & returns

Overview

When a specification reinforces the whole roof rather than the details, the roll gets wide. KST020385 is 40 in of white Uniflex polyester on a 324 ft roll (Sherwin-Williams also lists the same roll as KST20385C), about 1,080 sq ft of coverage before laps, and it is the width crews run across open deck behind a base coat.

The material is the same polyester as the 6 in and 12 in rolls, and it works the same way: laid into a wet coat, broomed flat until it wets through, then coated over so the fabric ends up in the middle of the film. It is also the sensible width for broad flat repairs on old bituminous roofs, where an emulsion or elastomeric coat has to bridge a large area of weathered surface.

Application

  • Get the deck clean, dry and sound first. Loose coating, scale, ponded dirt and grease all come off before the base coat.
  • Prime for the substrate underneath: metal primer on panels, concrete primer on cured concrete under an acrylic system, the wash primer on EPDM only.
  • Do the details before the field. Seams, curbs, drains and penetrations get their reinforcement and coats, then the wide fabric goes across the open area.
  • Run the roll into the wet coat and broom it out as you go, keeping the laps consistent and free of wrinkles and bridging.
  • Follow the manufacturer’s product data sheet for coverage, film build, lap widths and recoat timing. The sheet sets the rates, not the roll.

Ordering

KST020385 is sold as one 40 in × 324 ft roll per case. Stocked rolls ship in 1 to 3 business days; if the width is not on the shelf it is ordered in and runs 1 to 2 weeks. Pallet quantities, and the drums or totes of coating that go with them, are freight shipments and go through the quote form with the part numbers, the roof area, the site ZIP and your dates. Every price is quoted per project.

Where it's used

  • Full-field reinforcement

    Roofs where the specification calls for fabric across the whole deck rather than at details only, bedded into the base coat run by run.

  • Large flat details

    Broad areas around drain sumps, tie-ins between roof sections and patched areas where a narrow strip would leave a joint in the reinforcement.

  • Modified bitumen and BUR repairs

    Alligatored and patched bituminous roofs where the reinforcement has to cover an area of old surface before the emulsion or elastomeric coats go on.

  • Split and blister repairs

    Cut-out and refilled splits or blisters that are wider than a tape run, three-coursed into the coat over the repair.

  • General roof repairs

    The listed use covers general repair as well as seams, flashings and penetrations, worked in with elastomeric or emulsion coatings.

Specifications

Specifications: KST020385 Uniflex Polyester Reinforcing Fabric, 40 in × 324 ft
Manufacturer Sherwin-Williams (Uniflex line)
Part number KST020385
Color White
Pack sizes One 40 in × 324 ft roll
Performance
Also listed as KST20385C, the same 40 in × 324 ft roll
Technology Polyester fabric, bedded into a wet coat and coated over
Roll size 40 in × 324 ft
Case quantity 1 roll per case
Recommended substrates General roof repairs, seams, flashings, penetrations and other details, with elastomeric or emulsion coatings
Role in the system Reinforcement embedded in the coating by the three-course method
Ordering
SKU CY-KST020385
Sold by Roll
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.

Shipping & returns

How to order

  1. Send the quantity, the site ZIP and your timing.
  2. A person sends one written quote with the delivered price and the ship window. We reply within one business day.
  3. Confirm the quote, and your order ships in 1–3 business days from confirmation.

Request a quote

Questions

Is this the width for a fully reinforced roof?
Yes. Forty inches is the area width. Detail-only specifications are usually cheaper to run in the 6 in and 12 in rolls, and many jobs buy all three.
How much area does one roll cover?
A 40 in × 324 ft roll is about 1,080 sq ft laid flat, before laps, cuts and waste at upstands. The data sheet gives the lap width; send the roof area and the quote counts rolls.
Can one person lay a 40 in roll?
On open deck it is normally a two-person run, one feeding the roll and one brooming the fabric into the wet coat. Around details the narrower widths are easier to handle.
Which coating goes with it?
Any of the elastomeric or emulsion coatings in the range. Base coat first, fabric into it wet, then the coats above; the manufacturer's product data sheet states the rates for each step.
What is the lead time?
Stocked rolls ship in 1 to 3 business days. If the 40 in width is off the shelf when the order lands, it is brought in on a 1 to 2 week lead.

Used with

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Trade & projects

Pricing a whole roof, or ordering drums and totes?

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