This same product was $8 last time I purchased. Why has it not quite tripled in price?!

Because staff wants to capitalize off needy people and make as much money as possible.

Will this adhere to it self ?

Yes it will pretty well.. I used a tube on my rv skylight then later discovered that I needed to thicken it in a few areas. Thoroughly clean the surface then apply. Solved the issue last winter. Haven’t been up there for a look how it made it through the summer though.

What product is recommended for adhering solar panel mounts to the roof of a tent trailer?

Sikaflex 221 is a really strong adhesive sealant... It can take up to a week for the Sikaflex to fully cure in colder temperatures. In temps above 70 degrees F. it takes about 5 days to fully cure. Once cured it is extremely durable and wont shrink and crack like traditional sealants, when exposed to the outside environment. However, I would never rely on just a sealent/adhesive to secure such an expensive item like a solar panel. Let alone the issue of the panels acting like a large sail on the roof of an RV and can cause some serious lift. SO If you don't want to drill in to the roof and put holes in the RV then I would recommend using some form of strap that can be affixed to the panels frame then hooked or bolted to existing bolt locations.

Is this safe for a an rv tpo roof (not epdm)?

I’ve used it on a Diflex II TPO roof and it adheres better then the dicor that was on the roof previously.

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AP Products 017-187690 Sikaflex-715

Product ID: 19276947

Details

Brand
AP Products
Item Weight
1.1 pounds
Item dimensions L x W x H
12 x 1.2 x 1.4
Material
Polyurethane
Style
Modern

♻️Very low VOCs

🌡️Extreme weather resistant

🛠️Cross-linking chemical curing

€ 39.44

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Description

🛡️ Seal smart, stay leak-free — the pro’s choice for roof peace of mind!

ECO SMART FORMULA - Ultra-low VOCs mean safer use without compromising performance or the environment.
MULTI SURFACE MASTERY - Bonds seamlessly to aluminum, fiberglass, vinyl, wood, and more for versatile application.
PRECISION APPLICATION - Self-leveling 300 ml cartridge ensures smooth, professional-grade sealing every time.
WEATHERPROOF CONFIDENCE - Stays crack-free from freezing cold to scorching heat—your roof’s all-season guardian.
UNMATCHED ELASTIC STRENGTH - Cross-linking curing delivers superior flexibility and durability beyond traditional sealants.

AP Products 017-187690 Sikaflex-715 is a premium polyurethane roof sealant engineered with a unique cross-linking chemical curing process that provides exceptional elasticity and durability. Designed specifically for EPDM and various roofing substrates, it offers superior bonding, extreme weather resistance, and very low VOC emissions. Packaged in a convenient 300 ml cartridge, Sikaflex-715 ensures a smooth, crack-free seal that outperforms traditional RV roof sealants, making it the trusted solution for long-lasting roof protection.

Specifications

ASIN	B00NBPZ90C
Best Sellers Rank	#106,419 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #277 in Adhesive Caulk #527 in Industrial Sealants
Brand Name	AP Products
Color	White
Compatible Material	Alu, Fiberglass, Vinyl, Wood
Customer Reviews	4.6 4.6 out of 5 stars (228)
EU Spare Part Availability Duration	5 years
Global Trade Identification Number	00033886007214, 00711217014420
Included Components	AP Products 017-187690 Sikaflex-715
Item Dimensions	12 x 1.2 x 1.4 inches
Item Form	Product
Item Type Name	AP Products 017-187690 Sikaflex-715
Item Weight	1.1 pounds
Manufacturer	AP Products
Material Type	Polyurethane
Model	017-187690
Number of Items	1
Part Number	017-187690
Style Name	Modern
Surface Recommendation	Roof
UPC	711217014420 033886007214
Unit Count	1 Count
Water Resistance Level	Waterproof

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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TrustScore 4.5 | 7,300+ reviews

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The product exactly matches the description. Very satisfied with my purchase.

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€ 39.44

Duties & taxes included

In stock

Sold byAmazon IrelandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Ireland.

Secure transaction

ProDesertcart PRO

Fast, free shipping, member pricing & priority support.

Join PRO →

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TrustScore 4.5 | 7,300+ reviews

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