MD-909 neutral silicone sealant

Features:
1.Single-component, neutral curing, high strength, high cohesiveness, high modulus,excellent performance in resist displacement.
2.No cracking or shrinking.
3.Can be applied in any season and easy to apply.
4.No corrosion to the materials such as glass, coated glass, concrete, marble, metal, etc.
5.High bonding strength, non-corrosive, have a strong seal with the majority of construction materials.

Main applications :  
1.Suitable to the weatherability and sealing of various curtain walls..
2.Sealing of many materials like concrete,aluminum panels,etc.
3.Most of the materials sealing, and other multi-purpose assembly.

Limitations:
1.Can not be used in structural glazing applications or where the sealant is intended as an adhesive.
2.Is not appropriate for all will be leaking oil, plasticizer or solvent surface.
3.Is not suitable for airtight place, because the silicone sealant need absorb air gas in the water cure.
4.Cannot be used on the unclean or unstable substrate.
5.Can not apply to the place where movement capability greater than ±25% of the original joint width.
6.Is not suitable for the place of continuous immersion or year-round moisture.
7.Surface temperature is not below 0℃ or above 50 ℃.
8.Can not ontact with strong acids or bases.
9.Not suggested to touch the food directly.

Typical properties:
These values are not intended for use in preparing specifications.

Test Method Property Unit Standard Result
GB/T 13477 (ISO 7390) Slump mm ≤3

≤3

0

0

GB/T 13477 (ISO 8394) Extrusion rate ml/min ≥80 790

171

GB/T 13477(ASTM D 2377) Tack free time h ≤3 1.45
GB/T 13477 (ISO 7389) Extension recovery % ≥80 90
GB 16776 (ISO 10563) Weight loss % ≤10 6.72
GB/T 13477 (ISO 8339) Modulus at 23℃ MPa  >0.4 0.62
GB/T 13477 (ISO 11600) Movement capability % ±25 ±25
GB/T 13477 Extension/compression rate % ±25 ±25
GB/T 13477 Adhesion at fixed stretch No failure No failure
GB/T 13477 Adhesion after heat contract and cold extension No failure No failure
GB/T 13477 Adhesion after UV-water exposure No failure No failure

GB: Chinese National Standard
ASTM: American Society for Testing and Materials
ISO: International Standardization Organization
The “GB” testing method is equivalent or partly equivalent to that in the“( )”

Installation:
1.Surface preparation: Sealants may not adhere or maintain long-term adhesion to substrates if the surface is not prepared and cleaned properly before sealant application. Using proper materials and  and cleaning procedures is vital for sealant adhesion.
2.Cleaning materials:  clean, fresh solvent; clean, white cloths free of lint or other lint-free wiping materials; primer (when required).
3.Cleaning procedures:  Remove all loose material (such as dirt and dust), plus any oil, frost or other contaminants from the substrates to which the sealant will be adhered. Do not use detergent to clean the substrate as residue may be left on the surface. Wet one rag with solvent and wipe the surface with it, then use the second rag to wipe the wet solvent from the surface before it evaporates. Change the cleaning rags frequently, as they become soiled. If cleaned areas are again exposed to rain or contaminants, the surface must be cleaned again.
4. Primers: MD-909 neutral silicone sealant will bond to many clean surfaces without the aid of a primer. For difficult-to-bond substrates, the use of a primer or special surface preparation should be evaluated.

Emergent Treatment:
Keep out of reach of children. Once it contacts skin or eye by accident, rinse the affected part with water for 15 minutes or turn to doctor for help immediately.

Shelf Life:
9 months from the manufacture date stored in cool & dry place below 27 ℃.

Color:
Clear, black, white, gray, other colours as clients’requirement.

Packing:
Disposable cartridges:net 300ml,280ml,260ml;24 pcs / box.
Sausages:net 590ml, 500ml; 20 pcs / box.

LIMITED WARRANTY INFORMATION – PLEASE READ CAREFULLY

The information contained herein is offered in good faith and is believed to be accurate. However, because conditions and methods of use of our products are beyond our control, this information should not be used in substitution for customer’s tests to ensure that Foshan Shunde Mimdy Sealant Co., Ltd.’s products are safe, effective, and fully satisfactory for the intended end use.

FOSHAN SHUNDE MIMDY SEALANT CO., LTD.SPECIFICALLY DISCLAIMS ANY OTHER EXPRESS OR IMPLIED WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE OR MERCHANTABILITY.

FOSHAN SHUNDE MIMDY SEALANT CO., LTD. DISCLAIMS LIABILITY FOR ANY INCIDENTAL OR CONSEQUENTIAL DAMAGES.