Surface Preparation:

All surfaces must be dry and clean, free from any dust and grease or anything which may be detrimental to correct adhesion of the sealant.
To degrease wipe with a pad soaked in solvent, such as an alcohol (e.g. Isopropanol) or ketone (e.g. MIBK) then wipe with a clean cloth. Dust should be removed using oil-free compressed air.


When required the following primers may be used:
- Aluminium (ordinary or anodised): BLUESIL PRIM 10073.
- Steel, ferrous metal and wood (unpainted or stained): BLUESIL PRIM 10073.
- Rigid plastics: BLUESIL PRIM 10073.

For long term immersion, trials are necessary, depending on the quality of the substrate.

On non-porous surfaces apply the primer with a pad or using a lint free cloth: ensure a uniform and thin coat is applied.

On porous surfaces, use a soft haired brush; in the instance of the surface being very absorbent, a second coat could be applied once the first has dried.

Dry- smoothing off of the seal ensures good contact between the sealant and the bonding surfaces. It should be carried out using a spatula before the surface skin is formed.

Areas soiled with fresh sealant may be cleaned with a dry pad or a pad soaked in a solvent (compatible with the substrate) such as trichloroethylene. Any cured sealant can be scraped off (e.g. using a razor blade) or with a special silicone remover product like BLUESIL SILICONE REMOVER.

For large aquariums, it is recommended to use spacers made from silicone elastomer of sufficient hardness to wedge the panes of glass against the walls.

Bonding joint dimensions for bonded glass aquariums

The bonding joint can be broken down into two parts:

On one hand, the sealing joint of width identical to the thickness of glass used and of thickness, h, around 1 to 2 mm.
On the other, the structural joint itself, a triangular joint applied to the inner edges, whose thickness, e, depends on the dimensions of the aquarium.
For safety reasons the minimum glass thickness will be 8 mm for the smallest aquariums.

For information purposes:  

Glass thickness

(i.e that of the sealant)

Max height

Max. length

​8 mm​40 cm​200 cm
​10 mm​44 cm​200 cm
15 mm60 cm​200 cm


It is not recommended to have lengths (or widths) over 2.0 m and heights over 1.2 m. Consult your glass trade outlet for other dimensions. Horizontal and vertical glass panes must be of the same thickness.

For any problem concerning dimensions or the choice of configuration, please consult us.

BLUESIL SLT AQUARIUM BLACK may be stored at temperatures between 2°C / 36°F and 30°C / 86°F for up to 24 months from its date of manufacturing.Please consult the Safety Data Sheet of this product.


BLUESIL SLT AQUARIUM is a one-component, ready-to-use silicone elastomer intended for sealing and bonding applications.

This sealant cures quickly at room temperature and in the presence of air moisture to give a flexible and strong joint with a high modulus of elasticity.


BLUESIL SLT AQUARIUM offers excellent resistance to climatic ageing.


BLUESIL SLT AQUARIUM is available in black and translucent.


1 Part RTV Acetoxy

Its high cure rate and modulus of elasticity enable very cohesive bonded assemblies to be quickly made. Moreover, its exceptional translucency makes it a sealant that is particularly well suited to producing aquariums.

BLUESIL SLT AQUARIUM gives primerless adhesion to glass, ceramics and glazed surfaces. On other materials (metals, wood, plastics, concrete, stone), it is advised to use adhesion primers. 


BLUESIL SLT AQUARIUM, once cured, resists to diluted acids and bases, diluted bleach, sea water and salt mist. Additionally, BLUESIL SLT AQUARIUM is not affected by exposure to sunlight, rain, snow and ozone and maintains this resistance over many years.

Aquariums (translucent and black colours only).

Asia Pacific;Europe Middle East Africa;Central and South America;North America




Hardness24MonocompISO 868sh.A
Elongation450MonocompNF ISO 37%
Tensile strength2.5MonocompNF ISO 37MPa