WACKER 121 Silicone Sealant

Product Description

WACKER 121 Silicone Sealant is a high-quality silicone sealant specially designed for aquariums and glass tanks, manufactured using advanced German technology.
The sealant provides extremely strong adhesion, high elasticity, and excellent resistance to water pressure, ensuring joints do not peel, leak, or crack during use.

The product cures at room temperature by moisture in the air, contains no toxic solvents, and is completely safe for aquatic environments and aquatic life.
It is an ideal choice for aquarium construction facilities, glass tanks, and projects in wet environments.

Applications

• Bonding and sealing joints of aquariums, glass fish tanks, and aquatic display tanks.

• Used in the construction and assembly of indoor and outdoor water tanks.

• Suitable for projects requiring waterproofing and high durability in water environments.

• Ideal for aquarium workshops, handicraft facilities, and interior decoration related to glass and water features.

Benefits

• Ensures perfect water tightness, effectively preventing leakage.

• Increases durability and service life of aquariums and display tanks.

• Easy to use, saving installation time.

• Provides smooth, clear joints without yellowing.

• Safe, non-toxic odor, user-friendly for installers.

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Key Features

• Extremely strong adhesion on glass and smooth surfaces.

• Fast curing, easy application, fully cures at room temperature with air humidity.

• Crack-resistant, flexible, withstands vibration and high water pressure.

• Absolute waterproof performance for aquarium joints.

• Safe for aquatic life, does not affect fish or plants in tanks.

Instructions

• Surface preparation: Remove dust, oil, rust, and impurities using a clean cloth and suitable solvent.

• Preparation: Cut the cartridge tip, attach the nozzle, and place it into a caulking gun.

• Application: Apply the sealant evenly into the joint, use a spatula or cotton cloth to smooth the surface.

• Curing: The sealant cures by air moisture. Surface skin formation time: 10–30 minutes (depending on environmental conditions).

Note: Curing time may be longer if humidity is low or temperature is low.

Shelf Life

The shelf life of this product is 12 months from the manufacturing date.

Storage

To maintain product quality and durability, store in a dry, cool place, away from direct sunlight, heat sources, or open flames.
Close the cap tightly after use and limit prolonged exposure to air to prevent evaporation or degradation.

Safety Precautions

• Do not apply on oily, wet surfaces or oil-based painted surfaces.

• Not suitable for polycarbonate materials or metals prone to corrosion.

• Do not use for food-contact surfaces or load-bearing structural bonding.

• Apply in a well-ventilated area and avoid inhaling vapors.

• Wear gloves and a mask during application.

• Avoid contact with eyes or skin.

• Keep out of reach of children.