Duro-Last Duro-Fleece Membrane Adhesive User Manual

DURO-LAST

DURO-FLEECE® MEMBRANE ADHESIVE

DATA SHEET

Description:

Duro-Fleece

membrane adhesive is a two component adhesive used for adhering Duro-Fleece membrane to a variety of substrates. It is used in both new and reroof applications.

Duro-Fleece membrane adhesive contains less than 250 g/L of Volatile Organic Compounds (VOC) and meets all VOC restrictions and regulations in the United States.

Duro-Fleece membrane adhesive may be used on the following substrates after they have been properly prepared as described in the Duro-Last Adhered Duro- Fleece Roofing System Specification. The installing contractor is responsible for following all applicable building, plumbing and electrical codes.

• Structural Concrete (poured in place or precast)

• Gypsum (poured in place or precast)

• Lightweight Concrete (insulating or cellular)

• Wood (Plywood, OSB or Lumber)

• Smooth Built-Up Roofs (BUR)

• Modified Bitumen

• Polyisocyanurate Rigid Insulation Board

• DensDeck

• SECUROCK

Prime Roof Board (preferred)

Roof Board

Gypsum-Fiber Roof Board

Duro-Fleece membrane adhesive is available in 10 gallon “bag-in-box” sets or in 1500 ml cartridge sets (4 cartridges per case) for smaller areas. The bag-in-box sets utilize a separate box for each of the two components while the cartridge holds both components side-by-side.

10 Gallon Bag-In-Box Sets Packaging

Unit Amount Weight Box 1 Box 2

1500 ml Cartridge Packaging

Unit Qty / Case Weight

Case

5 gallons 52 lb. 5 gallons

4 - 1500 ml cartridges 18 lb.

44 lb.

Application rates will vary depending on the surface roughness and absorption rate of the substrate. Typical coverage rates for cartridge sets are 400–600 square feet per case when bands of adhesive are spaced 12 inches on center.

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“Duro-Last”, “The World’s Best Roof” and “Duro-Fleece” are registered marks owned by Duro-Last, Inc. 8/29/2012

Typical coverage rates for 10 gallon bag-in-box sets are shown below for different substrates. These coverage rates are based on adhesive band spacing of 12 inches on center.

Substrate

Concrete 1,700 – 2,000 sq-ft Gypsum 1,000 – 1,200 sq-ft Lightweight Concrete 1,000 – 1,700 sq-ft Wood 1,700 – 2,000 sq-ft Smooth Built-Up 1,500 – 1,700 sq-ft Modified Bitumen 1,500 – 1,700 sq-ft Polyisocyanurate Insulation Board 1,700 – 2,000 sq-ft DensDeck® Prime Roof Board 1,700 – 2,000 sq-ft SECUROCK® Gypsum-Fiber Board 1,700 – 2,000 sq-ft

Typical Coverage

10 gal. bag-in-box set

Material Safety Data Sheet (MSDS): Box 1: Duro-Fleece Membrane Adhesive Part 1 Box 2: Duro-Fleece Membrane Adhesive Part 2

Precautions:

1. Read MSDS for Part 1 and Part 2 prior to using.

2. Wear proper personal protective equipment, such as gloves and eye protection, per the MSDS.

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DURO-FLEECE® MEMBRANE ADHESIVE

3. Follow instructions on the product label regarding safety, proper setup, handling, and disposal.

4. Keep containers closed. Contamination by moisture or basic compounds can cause dangerous pressure build-up in a closed container.

Installation:

1. Limitations

a. The minimum product temperature before

application is 72 °F.

b. The minimum ambient and surface

temperature should be 40 °F and rising.

c. Do not use during wet weather. d. Do not use on wet substrates. e. Do not use on dirty or greasy substrates. f. Do not use on substrates that show signs of

deterioration or loss of structural integrity.

g. Do not use product after expiration date.

2. Retrofit-recover projects a. The existing roof system must be investigated to

ensure that it is adequately attached. b. All wet material must be removed and replaced. c. Existing Phenolic insulation must be removed.

3. Duro-Fleece membrane adhesive must be applied using the proper application cart or gun. Contact Duro-Last for additional information.

4. Duro-Fleece membrane adhesive is dispensed in 1 inch wide bands. The spacing between bands is determined as follows.

a. For any project located in an area where the

design wind speed is greater than 110 mph or a the roof deck height is greater than 40 feet, the Duro-Last Engineering Services Department must determine the band spacing. Otherwise, use the following guidelines.

b. The spacing between bands of Duro-Fleece

membrane adhesive is less in the perimeter area of the roof than in the main field area to compensate for higher wind uplift pressures.

• Perimeter Area: 6 inches on center.

• Field Area: 12 inches on center.

c. The width of the perimeter area is defined

as whichever is less, 40% of the building eave height or 10% of the lesser roof plan dimension, but in no case less than 4 feet. The remainder of the roof is the field area.

5A. Bag-In-Box / Cart Application

a. Install Part 1 and Part 2 boxes on cart

following the instructions on the box label.

b. Open flow valves on the dispenser

completely and turn machine on. This allows adhesive to be pumped at a 1:1 ratio through the disposable mix tip and onto the substrate in a semi-liquid state.

c. Apply the fluid mixture in 1 inch wide bands

using the spacing determined above.

d. Once boxes are installed on the cart the

contents must be used up.

5B. Cartridge / Gun Application

a. Remove cap and attach the disposable

mixing tip to the end of the tube.

b. Apply fluid mixture to substrate in 1 inch

wide bands using the spacing determined above.

c. When not in use, keep the mixing tip

pointing down to prevent mixed product from flowing back into the cartridge.

d. To store overnight, remove mixing tip and

put the cap on.

6. Allow the adhesive to turn to a carmel color before applying the Duro-Fleece membrane. Apply the membrane as soon as the adhesive is ready. Do not leave the adhesive exposed.

7. Apply the Duro-Fleece membrane as described in the Duro-Last Adhered Duro- Fleece Roofing System Specification.

Note:

1. Keep Duro-Fleece membrane adhesive from

freezing at all times.

2. Store in a cool, dry location at temperatures

between 55 °F and 85 °F.

3. Shelf Life: 18 months in original, sealed

container.

www.duro-last.com

“Duro-Last”, “The World’s Best Roof” and “Duro-Fleece” are registered marks owned by Duro-Last, Inc. 8/29/2012

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