Would this work as a sealant on the abs fitting that inserts into the rv poly holding tank outlet and has a hose clamp?

Re UV protection. It is widely used on RV roofs so presumably is at least UV resistant. That said, I've found that it lasts only about 3 years on the roof of an RV that sits out in the sun. It is necessary to check it annually and rough up the existing material and add more where cracks have developed. The cracks are in part from expansion and contraction of the underlying parts, but do work their way up through the Sikaflex 221 and result in a leak of the crack is not repaired. I inspect my RV roof annually and usually need to do some repair to the older Sikaflex-221.

Is this suitable for bonding a window into an aluminium u-channel on an rv? also, can i remove it if need be? thank you

Precisely the application to which I put the material to use in - sealing RV windshield to aluminum and fibreglass. Has worked flawlessly for 4 years. Easy to remove before cure; extremely difficult to fully remove after cure.

Can someone verify if inventory issue fixed, ordered two blacks and received both white (stamped inside bottom of tube)

I have always received the correct color ordered (fulfilled by Amazon). Contact the Seller directly (or whoever is fulfilling an order on their behalf), to confirm inventoried colors. I would request a refund for any product that is not what you ordered.

Do you recommend this for filling in concrete floor cracks? Will it self-level?

Not sure on concrete it may hold up but it will not self-level

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SIKA 多用途シーラント/接着剤グレー Sikaflex-221 – 硬化性ポリウレタン高弾性耐候性研磨可能塗装可能木・金属・プラスチックに接着

Product ID: 734106036

Details

ブランド
SIKA
商品の重量
350 グラム
完全硬化時間
5-7 日々
液体容量
10.3 液量オンス
色
アルミグレー。

🌊resistant to seawater & chemicals

⏱️fast skin formation in 1 hour

🛠️1-component polyurethane

484.37 DT

Duties & taxes included

In stock

Sold byAmazon TunisiaDelivered 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 Tunisia.

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Description

🔧 Seal it like a pro — durable, versatile, and ready when you are!

SAFE CERTIFIED - NSF-approved for potable water & food production environments—work confidently and cleanly.
QUICK DURABLE CURE - Forms a tough, elastic seal in 2 hours with full cure in 5-7 days, ready for sanding & painting.
ULTIMATE VERSATILITY - Bonds permanently to metal, wood, plastic & ceramics for all your project needs.
PRO GRADE APPLICATION - Compatible with electric, pneumatic & manual guns for precise, mess-free use every time.
WEATHERPROOF PERFORMANCE - Engineered to resist aging, seawater, acids & harsh environments without losing strength.

Sika Sikaflex-221 is a professional-grade, one-component polyurethane sealant and adhesive in aluminum gray. It offers exceptional adhesion to metal, wood, plastic, and ceramics, with superior resistance to weathering, seawater, and chemicals. Packaged in a convenient cartridge for easy application, it forms a fast skin in 1 hour and fully cures in 5-7 days. NSF-approved for potable water and food environments, it delivers a durable, elastic, paintable, and sandable finish ideal for industrial and DIY sealing and bonding tasks.

Specifications

ASIN	B01GDN4AAI
Amazon 売れ筋ランキング	産業・研究開発用品 - 576,036位 ( 産業・研究開発用品の売れ筋ランキングを見る ) 接着剤 - 7,902位
Liquid Volume	10.3 液量オンス
UPC	033886005104
おすすめ度	5つ星のうち4.5 299 レビュー
カラー	アルミグレー。
ブランド	SIKA
ブランド名	SIKA
メーカー名	Sika
メーカー型番	90892
モデル番号	SIKA-90892
ユニット数	1.0 個
初期硬化時間	2 時間
商品の入り数	1
商品の重量	350 グラム
商品タイプ	液体
完全治癒時間	5-7 日々
完全硬化時間	5-7 日々
推奨する地面のタイプ	金属、木材、ガラス。
最大ギャップ充填	1 インチ
液体容量	10.3 液量オンス
温度の範囲	40-100 華氏
素材	ポリウレタン
耐水レベル	防水
色	アルミグレー。

Reviews

J**S

Great stuff

Use this on my Airstream, works great.

Invalid date

P**N

Very similar to Proform PF211, which i use for metal panel weld sealing, and car parts.

Used for body sealing and weld seams seal.

Invalid date

A**R

As advertised

Good quality

Invalid date

L**R

It works well

This sticked solar panels firmly to my RV. Nice.

Invalid date

T**O

Tough hold

Used it to adhere a spoiler to my car. After 24 hours of dry time, spoiler ain't going nowhere

Invalid date

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484.37 DT

Duties & taxes included

In stock

Sold byAmazon TunisiaDelivered 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 Tunisia.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Sneha T.

Received my product in pristine condition. Great service overall.

1 month ago

Meera L.

Smooth transaction and product arrived in perfect condition.

3 weeks ago

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SIKA 多用途シーラント/接着剤 グレー Sikaflex-221 – 硬化性ポリウレタン 高弾性 耐候性 研磨可能 塗装可能 木・金属・プラスチックに接着

Details

Details

Description

Specifications

Reviews

Common Questions

SIKA 多用途シーラント/接着剤グレー Sikaflex-221 – 硬化性ポリウレタン高弾性耐候性研磨可能塗装可能木・金属・プラスチックに接着