Hot melt for insulating glass

Hot melt sealants for insulating glass also named thermo sealant, are polymer based thermoplastic solids that develop immediate strength upon cool down. Specifically formulated to adhesive sealants to glass and metal. They have an excellent low vapor transmission rate, and do not emit gases. It from a flexible seal, provide good resistance to weathering and ultraviolet radiation breakdown consequently, offer long-range stability. Scenery hot melt butyl sealants have reached the international advanced standard level, can be tested according to customer's needs. Our hot melt butyl sealants are widely used in North-East of China where can reach very low temperture enviroment of -40 ℃, showed very good quality, keep good sealing, never breakage. Beijing XinDeRuiJia Plastic Co., Ltd.  also have been the leader for hot melt butyl sealants developing and production in China. 

Scenery Hot Melt Butyl insulating glass sealant adopts the American imported production technology, it is one-component 100% solids system that requires no mixing and offers minimal waste, fast setting for quick handling of finished IG units with the good characters of energy saving and environmental. It has the strong adhesive and joint characters to glass, vinyl, aluminum and other substrates typically used in IG fabrication, water proof and moisture proof, with longer life. High shearing strength and tensile strenght. Secery XD-201 can be the absolutely one step sealing sealants to the glass as its' good sealing ability. Also can be the second barrier sealing  basis on the butyl sealants of first sealing. It also can be used together with the TPS realize the wonderful sealing for insulating glass, etc.!


Parameters:

Technical Data (according to the test report of CNASL0690):

Appearance and colorFine and smooth synthetic rubber, black, white, grey
Solid100%
Density1.18g/ cm³GB/T1033.1 (1.20±0.05)
Sheering strength0.20 MPa;JC/T914-2014 (≥0.15)
12% changing rate after 168h UV treatment,
Needle penetration (25℃) 1/10mm37JC/T914-2014  (35-55)
Water vapor transmission rate0.45 g//dayJC/T914-2014 (≤0.8)
/ EN 1279-4 (≤1.0)
Volatile content1%
FoggingNo visual fogging JC/T914-2014


Scenery hot melt sealant with the good characters of :


No odors,

Fast drying,

Strong seal

UV resistance

Low vapor transmission rate

Good adhesive to glass and metal

Leader level in the international market



Single component

No mixing

Cost saving

Minimal waste, Can be used repetitively

Low temperature sealing sealant

Fast setting for immediate handling of insulating glass units

Outstanding chemical adhesion to glass, vinyl, aluminum and other substrates

Widely used for the insulating glass, construction, passengers vehicles, etc.




Take XD-201 hot melt sealants comparing with the local high quality two component polysulfide sealant for example: 


Items

Single component hot melt sealant

Take Present local high quality two component polysulfide sealant for example

Cost /

0.9-1.2 US$ /

1.2-1.5 US$ /

Mixture or not

Single component, no mixture again

need mixture according to the different rate

Density

1.05g/cm³

A:1.89g/ cm³B:1.76g/ cm³

Taste

No taste

Polysulfide taste, not environmental

Hardening time

1minute

12-24 hours

Working Temperature

10-60

23

Water vapor transmissivity

0.25-0.65g//d

6-16g//d

UV irradiation

Very good

General

Ozone proof

Very good

General

Saved sealant

repeatable using(

can’t use again (×)

Anti-resistant

25-35 years

10-20 years


 
 

Why choose the hot melt sealant for the insulating glass production?


Table 1: all kinds of typical water vapor transmittance of sealant (MVTR)

Sealing material

typical water vapor transmittanceMVTR)(g/m²/day

Hot Melt Sealant

0.65

Butyl sealantPIB

0.17

Polysulfide rubber

40-65

Polyurethane

15-40

Silicone sealant

≥200

Swiggle(solid strip)

0.65


2) Gas keep ability

 

The filled gas can further improve the performance of the hollow glass, the inert gas commonly used include: argon, SF6, krypton, xenon, etc. The gas keep ability of different sealant is different.

Table 2 kinds of typical gas keep ability to compare sealant:

Sealants

Gas keep ability

Hot Melt Sealant

Good or Excellent

Butyl sealantPIB

Excellent

Polysulfide rubber

Good

Polyurethane

good in general

Silicone sealant

poor

Swiggle(solid strip)

Good or Excellent

 

 

There are many kinds of manufacturing methods for the insulating glass, the best manufacturing method depends on the specific requirements: quality, efficiency and cost. Property of hollow glass there are many factors, one of which is your choice of sealant.


3)Comparison of following tables 3 to check the kinds of hollow glass manufacturing process:

Item

one-component hot melt adhesive process

two-component adhesive process

comfortable strip process

Production efficiency

High efficiency (single class annual production capacity can reach 80000 square meters)

Lower

Higher

Process complexity

less process relatively, simple procedures

more complex

the simplest

labor personnel

less

more personnel

 Least personnel

Production environment

no special demand

High demand, curing time is longer at the low temperature

no special requirements

Curing time

2-3 minutes

24 hours

a few minutes

Sealant material consumption cost

cheapest

cheaper

expensive

Equipment maintenance

Simple, high reliability

more difficult

simple, high reliability

management

Simple

complex

Simple

Conform to the national standard

GB11944 ASTME773/E774,highest level of Grade CBA

GB11944

GB11944

Applicable scope

suitable for doors and Windows with hollow glass

can be applied to Windows and doors, using polyisobutylene (PIB) and silicone rubber, double seal can be used for the curtain wall

suitable for doors and Windows with hollow glass, especially for special shape

By the table3 can see each process has its own characteristics, which process depends on the quality, production efficiency and cost aspects of consideration. Products to meet the requirements, and to cheap and fine, to get good product popularization and promotion, improve the quality of work and life, in order to achieve the purpose of energy conservation and environmental protection.



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