Masterfix 820

Identification

Chemical Family

Polyurethanes (PU)

GBU

BAS

RTU Product Type

2K (2 component) Adhesive,

Reactive Adhesive

Categories

Markets → Consumer Goods → Applications → Carpet & Upholstery

Technologies → Adhesives & Sealants → Product Families → Bonding Technology → 2K Liquid Reactive Adhesives

Applications

Application Area

Carpets,

Parquet Flooring,

Insulation Board,

Laminate Floor,

Wooden Surfaces

Application Method

Brush,

Roller,

Trowel

Compatible Substrates & Surfaces

Polyvinyl Chloride (PVC),

Tile,

Expanded Polystyrene (EPS),

Polyisocyanurate,

Carpet,

Extruded Polystyrene (XPS)

Applications & Uses

Application Procedure

The surface must be dry, structurally sound and free from loose particles, grease, dirt, dust, paint, wax, etc.

The two components which make up MASTERFIX 820 are contained in pre-dosed containers. The mixing ratio is already established (resin to hardener = 7:1). Mix the two components for a minimum of two minutes using a low speed mechanical mixer, until a smooth paste with a uniform cream color is obtained.

The final chemical setting and optimum bond strength is achieved after 7 days. Pot and setting times vary depending on temperature and relative humidity.

Pour the MASTERFIX 820 adhesive out of the container but do not scrape out remnants as they may not be totally mixed and may not cure. Use the MASTERFIX 820 adhesive immediately. Apply the MASTERFIX 820 adhesive with a suitable notched trowel at 0.25 to 0.4 kg/m2 per layer, depending on the porosity of the substrate. Curing time is dependent on atmospheric conditions and temperature. Curing will be considerably retarded at temperatures below 10°C. Bulk product in the bucket will cure faster than the film spread on the substrate, due to chemically induced heat build-up during the curing process. This temperature increase is negated once adhesive is spread. Higher temperatures will generally increase curing speed and reduce open time.

Product Applications

• MASTERFIX 820 is recommended for bonding parquet, multi-ply and pre-finished wooden flooring, wood-plank flooring, laminate flooring, rubber tiles, carpets, ceramic, quarry tiles, chipboard, plywood, hardboard, PVC sheets, PVC tiles and fiber/cement sheets.
• MASTERFIX 820 is also recommended for bonding various insulation boards such as EPS (expanded polystyrene), XPS (extruded polystyrene), PIR (polyisocyanurate).

Features

Ready-to-Use Product Features

Good Bonding Strength,

Good Weather Stability,

Heat Resistance,

Low Odor,

Moisture Resistant,

Water Resistant

Features & Benefits

Labeling Claims

Lead-free,

Solvent-free,

Asbestos-free,

Mercury-free

Product Features

• Solvent free
• Low odor
• Excellent adhesion and bonding strength
• Resistant to chemicals after 7 days of application
• Usable immediately after curing
• Withstands heavy duty wear
• Excellent water resistance
• Excellent heat resistance.

Packaging & Availability

Regional Availability

• India/MiddleEast/Africa (IMEA)

Packaging Information

Part A (7 Kg) + Part B (1 Kg)

Physical Properties

Physical Form

Liquid

Properties

Product Properties

• High temperatures accelerate curing, while low temperatures retard curing.
• Coverage Range (subject to surface condition): Approx. 0.25 to 0.4 kg/m2 per layer, depending on the porosity of the substrate.

Specifications

	Value	Units	Test Method / Conditions
Coverage (subject to surface condition)	0.25 - 0.4	kg/m²	-
Density	1.54 - 1.56	kg/L	-
Initial Curing Time	6 - 8	hours	-
Mix Ratio (resin to hardener)	7:1	-	-
Pot Life of Mixture (at 27°C, mixture)	30	minutes	-
Service Temperature	max. 10	°C	-
Solid Content	98 - 100	%	-
Viscosity	35000 - 50000	cPs	ASTM D 2196

Component B

	Value	Units	Test Method / Conditions
Mix Ratio (by weight, part B)	1	-	-

Appearance

Thixotropic paste - resin (Part B)

Storage & Handling

Storage Conditions

• 9 months from date of manufacturing in original unopened containers as per the storage conditions mentioned below.
• Store product in a cool and dry place at 15°C to 30°C.
• Do not store adhesive in direct sunlight.
• Do not use at temperatures below 10°C or when humidity is over 90%.
• Rotate stock on a “first in-first out” basis.

Shelf Life

9 months