Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Account Cart

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

Account Cart

Wacker 121 Professional Aquarium, Fish Tank Silicone Sealant | Small to Large Tanks | Bonding, Gap Filling & Repair | Safe for Fish - FDA Approved (310ml - Clear)

Wacker 121 Professional Aquarium, Fish Tank Silicone Sealant | Small to Large Tanks | Bonding, Gap Filling & Repair | Safe for Fish - FDA Approved (310ml - Clear)

Name: Wacker 121 Professional Aquarium, Fish Tank Silicone Sealant | Small to Large Tanks | Bonding, Gap Filling & Repair | Safe for Fish - FDA Approved
Brand: Wacker
SKU: 725604774
Price: 819.21 UYU
Availability: OutOfStock
Rating: 4.8 (5 reviews)

Product ID: 725604774

Details

Brand
Wacker
Colour
Item form
Paste
Item package quantity
1
Item volume
310

💧Long-term waterproof seal

⏱️Fast curing speed

🛠️High strength & toughness

Description

🐠 Seal the deal with Wacker 121 — where strength meets fish-friendly finesse!

RAPID CURE TIME - Get your tank ready faster with quick-setting, high-viscosity sealant.
VERSATILE APPLICATION - Perfect for glass, plastics, ceramics, and more—small or large tanks, no limits.
ODORLESS ECO FRIENDLY - Enjoy a clean, odor-free application that’s safe for you and the environment.
FISH SAFE FDA APPROVED - 100% toxin-free formula ensuring a safe habitat for your aquatic life.
UNMATCHED AQUARIUM BONDING - Premium German silicone engineered for durable, leak-proof tank construction.

Wacker 121 Professional Aquarium Sealant is a premium, FDA-approved silicone designed in Germany for strong, waterproof bonding and gap filling in aquarium tanks of all sizes. Its fast curing, high toughness, and odorless formula ensure safe, durable repairs and construction, compatible with glass, plastics, and ceramics, making it the go-to sealant for aquatic professionals and enthusiasts alike.

Specifications

ASIN	B08KGVHJJ8
Brand	Wacker
Colour	Clear/Transparent
Compatible Material	Ceramic
Customer Reviews	4.3 out of 5 stars 377 Reviews
Item Form	Paste
Item Package Quantity	1
Item Volume	310 Millilitres
Item Weight	420 Grams
Item form	Paste
Item package quantity	1
Item volume	310 Millilitres
Manufacturer	Wacker
Manufacturer Part Number	WCK121
Model Number	WCK121
Unit Count	310.0 millilitre
Water Resistance Level	Waterproof
Water resistance level	Waterproof

Reviews

A**N

Super & Excellent quality Silicon sealant for aquarium 👍🏻

27.03.2026

P**R

Works well

15.03.2026

H**H

Good quality

31.01.2026

ア**世

It is waterproof, meant for aquarium builds

24.03.2026

A**Q

Best silicon ever in the market, for aquarium.

7.03.2024

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

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.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Fatima A.

Best international shipping I've ever tried. Worth every penny!

3 days ago

Anita G.

Good experience, but the tracking updates could be better.

2 months ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving millions of shoppers across more than 100 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Reema J.

Perfect platform for hard-to-find items. Delivery was prompt.

1 month ago

Suresh K.

Very impressed with the quality and fast delivery. Will shop here again.

4 days ago

View all Trustpilot reviews