PENOSIL Neutral Sanitary Silicone 350 / 350c – Neutral Cure Silicone Sealant

PENOSIL Neutral Sanitary Silicone 350 is a general-purpose neutral cure silicone sealant designed for sanitary, finishing and ventilation sealing works. It cures at room temperature under the influence of atmospheric moisture, forming a permanently elastic silicone rubber joint.

The added fungicide ensures excellent mold resistance. The sealant is UV and ageing resistant, resistant to household chemicals and does not cause corrosion on metal surfaces. Its non-slump consistency allows application on vertical joints with excellent workability.

Suitable for interior and exterior applications, including metal substrates.

Available packaging:

• 280 ml plastic cartridge, 12 pcs per box

• 600 ml foil pack, 20 pcs per box

Key Features:

• Neutral curing system

• Mold resistant (with fungicide)

• UV and ageing resistant

• Resistant to household chemicals

• Non-corrosive to metals

• Non-slump on vertical surfaces

• Permanently elastic

Adhesion:

• Metal surfaces

• Concrete

• Masonry and brick

• Stone

• Wood

• Glass

• Plastics

• Aluminium (lacquered, anodised, painted)

• Galvanised steel

• PVC

• Ceramics

Application & Usage

Suitable for:

• Sanitary sealing works

• Ventilation sealing

• Filling and sealing joints indoors and outdoors

• Sealing joints between tiled floors and walls, sinks, toilets, bathtubs, showers and shower cabins

• Sealing joints between window and door frames

• Weatherproofing façade joints

Application conditions:

• Air temperature during application: +5 °C to +40 °C

Surface preparation:
Surfaces must be dry, clean and free from dust, oil and contaminants. Non-porous surfaces should be cleaned with solvent and a lint-free cloth. Remove excess solvent before evaporation.

Application:
Cut the cartridge tip and attach the nozzle. Cut the nozzle to the desired opening. Apply evenly using a caulking gun. Smooth with a suitable tool and remove excess sealant immediately. For wide joints, use a backing rod to avoid three-sided adhesion. Ensure proper ventilation during curing.

Cleaning:
Uncured sealant can be removed with solvents such as white spirit or acetone, or with special cleaning wipes. Cured sealant must be removed mechanically or with silicone remover.

Limitations:

• Not suitable for aquariums or underwater joints

• Not suitable as structural glazing adhesive

• May cause discoloration on natural stone such as marble or granite

• Not paintable

• Not suitable as mirror adhesive

• Do not use on bituminous substrates or materials releasing oils or plasticisers

• No adhesion to PE, PP, PTFE

Safety Information:
H317 May cause an allergic skin reaction.
H412 Harmful to aquatic life with long lasting effects.
Contains Butan-2-one O,O',O''-(methylsilylidyne) trioxime and N-(3-(trimethoxysilyl)propyl)ethylenediamine. Contains octhilinone (ISO).