Silane Terminated Polyether Polymer Resin (RISUN 30000T)

Origin
China
Minimum Order
1 pcs
Inspection
ISO9001
Packing
According to customer's requirements
Delivery
FOB Shanghai
Payment
TT/LC
Keywords
Product Description
RISUN 30000T

Chemical Composition, Low Monol silyl terminated Polyether with trifunctional methoxy groups.

Physical form, Clear thick liquid, viscosity approx 30000-40000 Mpa. S.

CAS 216597-12-5.



This is a low monol STPP hybrid polymer based on polyether of approx 20000 - 25000 molecular weight. The shore A hardness of the resin cured with DBTDL is approx 20.



The resin is designed to be used with DIDP plasticizer and precipitated calcium carbonate to formulate construction and other joint sealants with shore A hardness in the range of 15 to 25.



The trifunctional methoxy groups can be catalyzed to cross link with various chemicals that are well known, however extra vinyl silane needs to be added in compounding, and the use on methanol can further retard the cross linking reaction when used in thick walled HDPE cartridges.



The advantage of the STPP resin with very low monol polyether is that a high level of DBTDL plasticizer can be added, and the sealant cures with no residual surface tack.



Use epoxy silanes and secondary amino silanes for superior adhesion as construction sealants.



Application:



The main requirements for exterior sealants are:



Low modulus even at low temperatures

Excellent UV resistance

High colour stability and no colour change

Good adhesion to porous and non-porous substrates

High tear resistance

Paint ability when needed

Resistance to cleaning procedures

Bubble free Curing

No surface tack that gathers dust and dirt



Hybrid sealants based on Risun 30000T meet the above requirements.



Risun Polymer for Adhesive requirements



Adhesives for hard floors such as sports arenas require:



High mechanical strength and recovery

High vibration resistance

Good chemical resistance

Excellent adhesion properties

Moisture resistance



Hard sports surfaces such as these are placed on concrete slabs and the products required are:

Moisture resistant membrane based on Risun 30000T

Adhesive layer based on Risun 15000T

Expansion joints in the wood floor based on above construction sealant.



RISUN 30000T POLYMER ADVANTAGES:



Softest long chain polyether for lower shore A sealants with high movement capacity to 20% ASTM standards.



Enables bubble free curing at normal temperature & humidity levels.



Formulations have excellent adhesion to porous stone and concrete panels.



Excellent adhesion to aluminium with no primers and a wash with green dimethyl carbonate solvent is enough.



Risun 30000T can be used to make a crystal water clear sealant where expensive stone is used.



Sealant formulations can use the cheaper PPC fillers now available to make thick sealant.



Sealants are solvent and isocyanate free and safer for tradesman and DIY consumers.



Sealants can be made in the factory with maximum mixer temperatures of 60 degree C and low energy use.



The trifunctional polymer is catalysed with low levels of tin containing chemical like DOTL or DBTDL.



No hazard warning labels on the sealant product when displayed in retail stores.



If you are interested in our new generation STPP, Please kindly contact us via (+86)13770998448 to Mr. Sean.
Product Feature
CAS NO.: 216597-12-5

Based on the polyether of 20000 - 25000 molecular weight.

Capped with Trimethoxy silane.

Less amount of safe catalyst, 0.5 - 1% tin based catalyst.

Shore A hardness of resin is 18 - 20.

Appearance: Transparent colorless liquid, no bubbles

Viscosity at 25C: Around 30000-40000 Mpa.s

Specific gravity: 1.005

Product Specification / Models
RISUN 30000T
Application / Models
he main requirements for exterior sealants are:



Low modulus even at low temperatures

Excellent UV resistance

High colour stability and no colour change

Good adhesion to porous and non-porous substrates

High tear resistance

Paint ability when needed

Resistance to cleaning procedures

Bubble free Curing

No surface tack that gathers dust and dirt



Hybrid sealants based on Risun 30000T meet the above requirements.



Risun Polymer for Adhesive requirements



Adhesives for hard floors such as sports arenas require:



High mechanical strength and recovery

High vibration resistance

Good chemical resistance

Excellent adhesion properties

Moisture resistance

Risun Polymer Company core strategy is to design and manufacture the new silane modified STPP resins with Technology from Western Companies and manufacturing and R&D resources in Taizhou in China. We will taylor make resins for Customer needs, as well as offering a basic standard range.

The Customers we target are the worlds sealant and adhesive and surface coating manufacturers who wish to replace the polyurethane products they make with the safer, and in many cases easier to make silane crosslinked products.

The elimination of free NCO and residual TDI and MDI monomer is essential if we are to protect our Customer Customers from these hazardous chemicals.

Our Technical Director has had extensive background in Paint and Adhesives manufacture and R&D.

For example slump resistant low modulus PU Construction sealant with good adhesion is difficult to manufacture. The use of STPP or Hybrid silane crosslinked resin allows the use of precipitated calcium carbonates for good rheology and the ability to use secondary amino silanes as adhesion promoters makes the formulation of these new hybrid sealants much easier.

We have the ability to source Polyether polyols from the well known major manufacturers using the DMC catalyst process, and there are now several manufacturers in China. There are also now in China several reputable manufacturers of the special silanes, and we have used them for several years now.

Chinese manufacturing now offers very Competitive sources of Chemicals, as the Supply Chain and Quality is now good, all the major world chemical manufacturers are present, and we are using the latest equipment for quality control of the Chemicals we use.

Please contact us, as we are able to offer Custom resin design and provide formulation advice and confidentiality as expected in today's tough environment.

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Risun Polymer Co.,Ltd.

China China
Contact Person: Sean Gu
Telephone: 86-025-86229635
Location: Jiangsu, China
Fax:86-025-86229083
Business Type:Manufacturer, Exporter
Main Target Region:United States
Address:
Qingjiang South Road
Main Product:
ms polymer, ms sealant,stp resin,silane terminated polymer
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