Trade Select Reinforced Ducting Tape 48mm and 72mm

Trade Select Reinforced Ducting Tape roll, scrim reinforced foil tape

$21.00

GST inclusive

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Australia-wide freight · Local pickup from Epping, VIC by arrangement. Ordering from the outback? Get in touch about deliveries to remote locations · Shipping details

Trade Select Reinforced Ducting Tape is an aluminium foil tape with a polyethylene scrim behind it, so it tears in a straight line by hand but will not stretch or split under load. 0.178 mm thick, 48 mm and 72 mm rolls, both 50 m.

Where the scrim earns its place

Plain foil tape stretches. On a reflective foam board join, a duct seam or anywhere the two surfaces move against each other, that stretch turns into a wrinkle and then a gap. The scrim holds elongation to 25% against the 100% of an unreinforced foil tape, and lifts tensile strength to 100 N/25 mm.

Heat and fire

Service range is minus 30 to plus 120 degrees, so it handles hot duct runs and roof space temperatures that soften ordinary tapes. Early fire hazard indices are 0, 0, 0 and 1 to AS/NZS 1530.3-1999. It is UV resistant and vapour sealing.

Which width

48 mm is the general purpose size for membrane laps and small duct seams. 72 mm is the one for reflective foam board joins such as ThermalBreak 7 and for larger ductwork, where the extra width gives a wider bond either side of the join.

On site

The surface has to be clean, dry and oil free. Apply between 10 and 40 degrees and press the tape down with a plastic squeegee. Full figures are in the table below.

Technical data

Ametalin technical data sheet (PDF)

Ametalin · Aluminium foil with polyethylene scrim reinforcement and acrylic adhesive · Joining reflective foam insulation, sarking, wall wrap and ductwork closure application

Sizes stocked

Roll size	Rolls per carton	Product code
48 mm x 50 m	24	TSIDTR-4850
72 mm x 50 m	16	TSIDTR-7250

Material properties

Total thickness	178 µm (PSTC-133 / ASTM D 3652)
Carrier thickness	127 µm
Adhesive thickness	51 µm
Peel adhesion	20 N/25 mm (PSTC-101 / ASTM D 3330)
Tensile strength	100 N/25 mm width (PSTC-131 / ASTM D 3759)
Elongation	25% (PSTC-131 / ASTM D 3759)

Temperature and fire

Minimum service temperature	minus 30 °C
Maximum service temperature	plus 120 °C
Application temperature	10 °C to 40 °C
Early fire hazard indices	0, 0, 0, 1 (AS/NZS 1530.3-1999)

Construction

Layers	Aluminium foil, PE scrim, acrylic pressure sensitive adhesive, silicone coated paper liner
UV resistance	UV resistant, will not delaminate with age
Vapour	Vapour sealing

Fitting notes

The surface must be clean, dry and free of oil and other contaminants. Apply between 10 and 40 degrees and press the tape down with a plastic squeegee so it follows every contour. Hand tearable. Store in a clean dry place out of direct sunlight.

Figures are taken from the Ametalin technical data sheet for Trade Select Reinforced Ducting Tape, TPM-45937-3, product codes TSIDTR-4850 and TSIDTR-7250. The manufacturer document is linked above. Typical values are not intended for specification development.

Common questions

What does reinforced actually change?

Elongation drops from 100% on a plain foil tape to 25%. The tape does not stretch as you pull it off the roll, so the join stays flat instead of wrinkling open later.

Which width should I buy?

48 mm for membrane laps and small duct seams. 72 mm for reflective foam board joins and larger ductwork, where you want a wider bond either side of the join.