High Strength RTV2 White Liquid Silicone Rubber for Molds

• Raw Material: Synthetic Rubber
• Material: Silicone Rubber
• Appearance: Liquid
• Form: Liquid Rubber
• Item: RTV 2030
• Density(g/cm3,25 Centigrade): 1.10-1.15
• Model NO.: MCSIL-2030 silicone rubber
• Color: White
• Mixing Ratio: 100:2 / 100:3 / 100:4 / 100:5
• Mixed Viscosity: 24000-25000 Cps ( Adjustable )
• Working Time: 30-40 Mins
• Curing Time: 4-6 Hours
• Hardness: 28-30 Shore a
• Tear Strength: 30 N/mm
• Tensile Strength: 3.8 MPa
• Shelf Life: 12 Months
• Transport Package: 20kg/Drum, 25kg/Drum or 200kg/Drum
• Specification: REACH
• Trademark: MC SILICONE
• Origin: China
• HS Code: 39100000
• Production Capacity: 8000kg/Day

Product Description

High Strength RTV2 White Liquid Silicone Rubber for Molds
 

Item No.	Properties before curing							Curing
	Part A	Part B		Part A+ Part B				Pot life at 25^0C		De-molding Time at 25ºC
	Appearance	Appearance		Ratio		Viscosity
MCSIL-2030	White	Clear		100:2		25000±20000 cps		30-40 mins		4-6 hours
	Properties after curing 24 hours
	Hardness Shore A		Tear strength		Tensile Strength		Elongation break (%)		Linear Shrinkage
	30		28-30 N/mm		3.8 Mpa		450-500		0.2-0.4%

Brief Introduction of RTV2 silicones for decorative concrete molds

RTV2 silicone rubber is a two component material, and it consist of Part A base silicone and Part B curing agent. When the two parts mix together and pour or brush on a object, the silicone base and curing agent can cure to be a silicone mold at room temperature; And 24 hours later, the silicone mold can be released from the object, and then the silicone mold can be poured into the following material to copy: Plaster, polyurethane, PU, GRC, cement, resin, polyester, wax etc...


Procedures of RTV2 silicones for decorative concrete molds

1. Make sure the surface of the original is clean and free of loose material.
2. Weight 100 Part A base and 2 parts of CA30 Curing Agent in a clean container.
3. Stir Part A base silicone before use thoroughly, as filler separation may occur upon prolonged storage.
4. Mix Part A and Part B evenly until the CA30 completely dispersed in the base.
5. Pour the mixed Part A base silicone and CA-30 curing agent as soon as possible onto the original
6. De-mold after 24 hours, it is will improve the replicate times of silicone mold.

Note: It is strongly recommended that entrapped air be removed in a vacuum chamber, allowing the mix to completely expand and then collapse. After a further 1-2 mins under vacuum, the mix should be inspected and can be used if free of air bubbles. A volume increase of 3-5 times will occur on vacuum de-airing the mixture. So a suitably large container should be chosen.

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