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Consturction Sealant

FT-306 Silicone Structural Sealant for Building Structural Sealant is a one-part, neutral cure, specifically designed for structural bonding and curtain wall adhesive construction applications. It easily extrudes in a wide rang weather condition and quickly cures at room temperature to form a high durable and flexible silicone rubber seal.

Product description

Characteristic

Structural Sealant has an excellent adhesive to most of construction material without a primer.

It has good features as follow:

a. Can be easily used and extruded any time.

b. Neutral cure-suitable for use on most construction materials.

c. Excellent adhesion to most construction materials without the primmer.

d. Excellent weather ability and stability.

e. High modulus after cured, extension/compression movement capability of up to ±25% of the original joint width.

 

Where to use

FT-306 Silicone Structural Sealant is designed for use in structural glazing applications such as: use for structural adhesion and seal the joints of the structural glass and metal or other building components in the factory or building site. It is also be used to adhere stiffening elements to building panels and for other similar adhesive applications.

 

Use limitations

FT-306  silicone structural sealant for construction is fit for structural usage. It should NOT be applied in the following conditions:

a. To all spaces that bleed oils, plasticizers or solvents such as wood immersed in oil, oil

Crack filler, and some uncured or sulfur zed fat, it should NOT be applied.

b. To the unventilated space (Silicone sealant need the water in the air to cure)

c. To the circumstances as immersed in water for a long time, underground all the year

d. To painted surfaces, may cause seal failure as the paint cracking or paint stripping

e. Frost or wet surfaces

f. Surface touch the food directly

g. Easily suffer mechanical clash

h. Fireproofing seal system

 

Typical properties (for reference)

The following data is for reference, is not suggested to make standard.

No

Item

The standard

Test result

Test method

Test at 50±5% RH and temperature 23±2℃  

1

Appearance

Have no grain, no agglomerations,1

Pass the standard

 

2

Droop degree

mm

Uprightness

≤3

0

GB/T113477.6-2002

Level

No distortion

No distortion

3

Tack Free Time, h

≤3

1.2

GB/T113477.5-2002

4

Extrusion ability, S 

≤10

3.6

 

5

Curing time at 50±5% RH and temperature 23±2℃,days

14-21

14-21

 

As Cured –After 21days at 50±5% RH and temperature 23±2℃:

6

Durometer Hardness,(Shore A), points

 

35

GB/T1531-1999

7

Tensile strength at 25% elongation, Mpa

 

0.14

GB/T113477.8-2002

8

Tensile strength at 50% elongation, Mpa

 

0.40

GB/T113477.8-2002

9

Tensile strength at ultimate elongation, Mpa

 

0.90

GB/T113477.8-2002

10

Ultimate elongation % at break,%

 

200-300

GB/T113477.8-2002

 

GB/T1___Chinese national standard

                                                                                  

Material feature

FT-306 Silicone Structural Sealant can keep good viscidity and can easily extrude between -25℃ to 50℃; Can keep good flexibility  between -50℃ to 150℃ after cured.

 

Specifications

GB16776; ASTM C 920;

 

Colors

Black/Grey ,We can also supply the other color according to the customer's requirement.

 

Packing

It is available in 300ml plastic cartridges, 24 cartridges/ carton.

or 590ml aluminum sausages,20 sausages /carton.

 

Storage and usable life

When stored at dry and airy, 27℃ or lower temperature conditions in the original unopened container, FT-306 has a shelf life of 12 months from the date of manufacture.

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