More from RTTSealant →

Seam Tape - Seal Cracks, Holes, Seams, Joints, Skylights & Vents. For bigger Holes and Cracks. Ideal for Waterproofing.

A$34.95–A$169.95

In stock at rttsealant.com

RTT Seam Tape seals larger gaps, seams, tears and joints, and must be coated with RTT Waterproof Sealant or another RTT coating for UV protection and a lasting seal. It comes in 20 m rolls from 25 mm to 200 mm wide. It suits roof and gutter repairs where gaps are too big for sealant alone.

See all 10 RTTSealant products·Visit rttsealant.com

Size
25mm x 20m · 50mm x 20m · 100mm x 20m · 150mm x 20m · 200mm x 20m

Price and stock from rttsealant.com, refreshed daily. We may earn a commission if you buy.

Highlights

  • For bigger holes, cracks and joints
  • Must be coated with RTT products
  • 20 m rolls
  • Widths 25, 50, 100, 150, 200 mm

Best for

DIYers sealing wider seams and tears on roofs or gutters.

Things to consider

  • Needs a coating over it to resist UV
  • Adhesive type and material not stated
  • Wider rolls cost considerably more

Key specs

PriceA$34.95–A$169.95
Length20 m
Widths25 to 200 mm
Coating requiredYes

Our take

Useful for bigger repairs, as long as you coat it.

Seam Tape - Seal Cracks, Holes, Seams, Joints, Skylights &… at a glance

BrandRTTSealant
PriceA$34.95–A$169.95
TypeWaterproofing
Options5 sizes
AvailabilityIn stock at rttsealant.com
CouponWelcome
ReturnsReturn within 30 days of receipt for a full refund or exchange if items are in original…

Price check

At A$34.95, the Seam Tape - Seal Cracks, Holes, Seams, Joints, Skylights &… is mid-range for RTTSealant, whose 9 listed products run A$19.95 to A$819.95.

Similar items from other brands we track run $9.99 to $99.99.

Buying from RTTSealant

RTT Sealant suits Australian and New Zealand DIYers and property managers who want a water-based, brush-on system for patching roof leaks, box gutters, balconies and tanks. It's not for buyers outside AU and NZ, since it doesn't ship elsewhere. Work out how much product you need for your surface area first, and ignore the inflated crossed-out prices when comparing.

Shipping
Free shipping on all orders within Australia and New Zealand. Orders are processed in 1 to 2 business days and arrive in 3 to 8 business days via Australia Post or Transdirect.
Returns
Return within 30 days of receipt for a full refund or exchange if items are in original condition and packaging; contact shop@rttsealant.com for a return label. RTT covers return shipping, and final sale items aren't returnable.

Read our full RTTSealant review and shop all products →

Frequently asked questions

Seam Tape or Geo Textile?
Seam Tape is designed for larger gaps and tears; Geo Textile reinforces between sealant coats. Both need RTT coatings.
Can I leave Seam Tape uncoated?
No, it must be coated to prevent UV damage.
How much is the Seam Tape - Seal Cracks, Holes, Seams, Joints, Skylights &…?
RTTSealant lists it at A$34.95–A$169.95 on rttsealant.com. We refresh prices throughout the day, but always confirm the final price at checkout.
Is there a coupon code for the Seam Tape - Seal Cracks, Holes, Seams, Joints, Skylights &…?
RTTSealant's store-wide code Welcome can be entered at checkout on rttsealant.com. RTTSealant sets the discount, and some items or sale prices may be excluded.
What is RTTSealant's return policy?
Return within 30 days of receipt for a full refund or exchange if items are in original condition and packaging; contact shop@rttsealant.com for a return label. RTT covers return shipping, and final sale items aren't returnable.
How long does RTTSealant take to ship?
Free shipping on all orders within Australia and New Zealand. Orders are processed in 1 to 2 business days and arrive in 3 to 8 business days via Australia Post or Transdirect.
What options does the Seam Tape - Seal Cracks, Holes, Seams, Joints, Skylights &… come in?
Size: 25mm x 20m, 50mm x 20m, 100mm x 20m, 150mm x 20m, 200mm x 20m.
Where can I buy the Seam Tape - Seal Cracks, Holes, Seams, Joints, Skylights &…?
The Seam Tape - Seal Cracks, Holes, Seams, Joints, Skylights &… is sold directly by RTTSealant on rttsealant.com. The Shop now button on this page goes straight to the product there, and code Welcome can be applied at checkout.
Is the Seam Tape - Seal Cracks, Holes, Seams, Joints, Skylights &… in stock?
Yes. RTTSealant lists it as in stock on rttsealant.com as of our latest check. Stock and prices refresh throughout the day.
Is RTTSealant a legit store?
RTT Sealant suits Australian and New Zealand DIYers and property managers who want a water-based, brush-on system for patching roof leaks, box gutters, balconies and tanks. It's not for buyers outside AU and NZ, since it doesn't ship elsewhere. Work out how much product you need for your surface area first, and ignore the inflated crossed-out prices when comparing. Our full RTTSealant review covers shipping, returns and what to check before ordering.
Is the Seam Tape - Seal Cracks, Holes, Seams, Joints, Skylights &… expensive?
At A$34.95 it is mid-range for RTTSealant (A$19.95 to A$819.95 across 9 products), and similar items from other brands run A$9.99 to A$99.99.

More from RTTSealant

Shop all RTTSealant →

Alternatives from other brands