ST 704 Silicone Speaker Sealant

ST704 silicone horn sealant is a one-component, semi-flowing, high-performance, methanol-free curing adhesive. It exhibits excellent adhesion to most materials such as aluminum alloys, stainless steel, and ABS+PC, and is weather-resistant, resistant to high and low temperatures, and cures quickly.

Main uses

Electronic speaker bonding and sealing;
Other suitable bonding and sealing applications for this product in the industrial field;

Packaging

Net content 300ml and 2600ml plastic tub packaging.

Storage and Shelf Life

Store in a well-ventilated and dry place at 5-25℃, avoiding direct sunlight. Shelf life is 6 months.

Safety Precautions

This product is non-toxic once fully cured, but contact with eyes should be avoided before curing. If contact with eyes occurs, rinse thoroughly with plenty of water and seek medical attention immediately. Uncured products should be kept out of reach of children.

At Hilkem we are committed to maintaining high human,environmental and ethical values. That is only possible thanks to the cooperation with local communities,with industry bodies, authorities and reulator and with you.

We are embedding sustainability into every aspect of our business, to help us play a greater role in creating a fairer, more sustainable future and respond to the climate emergency

Testing items	Technical indicators	Testing standards
color	White, Black
Curing method	Moisture curing
Operating temperature (°C)	-40-200
Surface drying time (min)	5-15	GB/T 13477-2002
Density (g/cm3)	1.25	GB/T 13477-2002
Hardness (Shore A)	36	GB/T 531-2009
Tensile strength (MPa)	≥1.2	GB/T 528-2009
Elongation at break (%)	≥300	GB/T 528-2009
Volume resistivity (Ω·cm⁻¹)	1×10 ¹⁵	GB/T 1692-2008