ACCESS® MWR 550

Identification & Functionality

Chemical Family

Silanes,

Siloxanes

Industrial Additives Functions

Water Repellent

Technologies

Industrial Additives & Materials,

Ready-to-Use Products

Product Families

Industrial Additives & Materials — Construction Chemicals

Cement & Concrete Additives

Ready-to-Use Products — Other Ready-to-Use Products

Features & Benefits

Labeling Claims

Solvent-free

Ready-to-Use Product Features

Excellent Water Resistance

Product Features

• Highly water-repellent
• Microemulsion concentrate
• Ready to use by simply diluting in water
• Creates strong beading effect.
• Highly penetrating into mineral surfaces
• Solutions must be applied with 24 hours after dilution
• Helps prevent soluble salts from blooming
• Solvent-free

Applications & Uses

Application Area

Brick

Application Method

Brush,

Roller

Product Applications

• ACCESS® MWR 550 is an excellent impregnating agent for many mineral materials, such as brick, cinder block, sandstone, natural stone or mineral plaster. Depending on the porosity of the substrate, ACCESS® MWR 550 can be diluted with water in a ratio of 1: 9 to 1 : 19. Apply a uniform coat of the dilution to the absorbent surface with a brush, roller or by flooding. To ensure uniformity of the coating, apply “wet on wet”. Dilutions must be processed within 24 hours.
• The dilution of ACCESS® MWR 550 is also used as a water repellent treatment to protect masonry from rising damp. The diluted chemical is injected, often at pressure, into walls via bore holes. The masonry in the injection area must be soaked completely to mitigate moisture successfully. In some cases of high moisture penetration, ACCESS® MWR 550 can be activated by the additional injection of an alkaline siliconate such as MWR 16 KS to accelerate the build up of a barrier layer.

Properties

Physical Form

Liquid

Appearance

Clear dark amber liquid

Typical Physical Properties

	Value	Units	Test Method / Conditions
Active Ingredients	100.0	%	-

Physico-Chemical Properties

	Value	Units	Test Method / Conditions
Density (at 20°C)	approx. 0.95	g/cm³	-

Packaging & Availability

Country Availability

Canada,

USA

Regional Availability

• Canada
• USA

Storage & Handling

Storage Conditions

• If stored below 0°C, MWR 550 may solidify or change its consistency.
• After heating to 20°C - 25°C and thoroughly mixing, this product can be used without any problems.
• If stored above 40°C, this product may exhibit some separation or settling of components.
• Cool the product to 20°C - 25°C and re-mix before using.
• Always keep the containers tightly closed to maintain product quality.