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Silane Terminated Polyether Polymer Resin (RISUN 30000D)

Min. order: 1 Piece
Trade Terms: FOB
Payment Terms: L/C, T/T
Trademark: Risun

Product Detail

Basic Info
  • Model NO.: RISUN 30000D
  • Characteristic: STP Resin
  • Molecular Principal Chain: Heterochain Polymer
  • Synthetic Resin: Hybrid Resin
  • Color: Transparent
  • CAS No.: 216597-12-5
  • Liquid Viscosity: 30000 Mpa.S .
  • Export Markets: Global
Additional Info
  • Trademark: Risun
  • Packing: Bucket
  • Standard: ISO 9001
  • Origin: China
  • HS Code: 3506919090
  • Production Capacity: 10000 Ton/Year
Product Description

RISUN 30000D
Chemical Composition, Low Monol silyl terminated Polyether with trifunctional methoxy groups.
Physical form, Clear thick liquid, viscosity approx 30000 Mpa. S.
CAS 216597-12-5.

This is a low monol STPP hybrid polymer based on polyether of approx 24000 MW. 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 30000D 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 30000D
Adhesive layer based on Risun 15000T
Expansion joints in the wood floor based on above construction sealant.

RISUN 30000D 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 30000D 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.

Risun 30000D in Construction sealant Starting Formulation
  Material  Parts by Weight 
1. Prepolymer  RISUN 30000D 100
2. Plasticiser  DIDP or 2000MW Diol  70
3. Filler Omyacarb 2T  170
4. Pigment TIO2  20
5. Drying Agent A171 and dry methanol  5
6. ThixotropicAgent Aerosil R972  10
7.Stabilizer and UV inhibitor  Tinuivin 765 and Irganox 1076  2
8. Adhesion Promoter Secondary amino silane KBM603   2
9. Catalyst DBTDL or DOTL  0.5
Total    379.5














Test Results
    Standard 
Tack free time  60     minutes 
Shore A penetration  34 ISO 868
Tensile strength at break  1.2  Mpa  ISO 37
Elongation at break  320 percent  ISO 37
Risun Polymer Co., Ltd.
Jiangsu, China
Local Time: 12:31 Sat Aug 2
Account Registered in: 2013
Business Type: Manufacturer, Trading Company, Group Corporation

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