Description
Manta STP M30 is a Silane Terminated Polyether, which is endcapped by trimethoxysilyl group, the main chain is PPO (polypropylene oxide).It could be applied in moisture curing elastic sealant, elastic structure sealant and sealing coatings. Sealants based on M30 not only have excellent adhesion properties, but also broad to a large range of substrates. This formulation have no solvent and isocyanate, as well as no bubbles and odour generated from curing. It is especially suitable for construction industry, transportation industry and general industry application.
Typical Physical Properties
| Manta code: | M30 |
| Chemical Name： | Trimethoxysilane Terminated Polyether ; Polyether with gamma isocyanato trimethoxy silane |
| CAS No.: | 216597-12-5 |
| Appearance | Colorless Transparent Liquid |
| Flash Point (℃): | 237 |
| Viscosity (25℃) / mpa·s: Density (25℃) / g/cm3: Catalyst Dosage (Tin, %) | 35000 – 55000 1.02 – 1.05 1 - 2 |
Properties
1. High Active, Fast Curing.
2. Good mix with normal additives.
3. Good transparency.
4. Good yellowish resistance.
5. Excellent mechanical properties.
6. Widely bond to substrates.
Applications
- Transportation industry sealant
- Medium, Low modulus construction sealant
- Transparent encapsulate adhesive
- DIY sealant
- Eco-friendly decoration sealant
Processing
Manta M30 polymer dissolves readily in standard organic solvents. It is virtually insoluble in aqueous media, and reacts slowly releasing methanol forming a inert material. Despite its highly reactive terminal groups, uncatalyzed M30 is stable in air for several days. However, its reactivity with water or atmospheric humidity must be taken into account during storage and processing, since the material will slowly starts to condensate.
Manta M30 polymer can be formulated by conventional methods and mixing processes. Water scavengers should be added to stabilize the formulations against premature curing during compounding or as a result of exposure to moisture during storage. Particularly suitable is trimethoxysilylmethyl-O-methylcarbamate or vinyltrimethoxysilane.
Guide formulation:
- 30 - 40 parts polymer
- 10 - 20 parts plasticizer (e.g. phthalate, polyether)
- 1 - 2 part water scavenger (e.g.vinyltrimethoxysilane）
- 2 - 5 parts thixotropic agent (e.g. silica)
- 40 - 50 parts fillers (e.g. chalks, titanium dioxide)
- 0.1 - 2 part of antioxidants and UV-stabilizers (e.g. phenols, HALS-stabilizers)
- 1 - 2 part adhesion promoter (organofunctional silanes)
- 0.3 - 0.6 part catalyst (e.g. Dibutyltin dilaurate，DBTDL)
Packaging
In 200L PVF Steel drum
Safety and Storage
Keep in a cool and dry place and avoid storage in direct sunlight. Shelf life is 24 months. It is non-hazardous substance.
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Nanjing Manta New Material Co., Ltd.