Description
A liquid primer used in the preparation of joint surfaces prior to the use of MASTERFLEX 700 series of sealants.
MASTERFLEX PRIMER NO. 1 is used when preparing porous surfaces such as concrete, brickwork, stonework, asbestos and timber and non-porous surfaces such as stainless steel and ceramics.
Application temperature
5°C to 40°C.
Coverage
Theoretical coverage approx. 20m² per litre.
Watchpoint
Due to the penetrating and sealing action of MASTERFLEX PRIMER NO. 1, staining may occur on materials such as granite, marble, natural stone and man made composites. If in doubt consult MBT's Technical Services Department.
Directions for use
Preparation of surfaces:
Joint faces to be primed must be completely dry and free from all dirt, dust, cement laitance and other loose and deleterious matter. This is best achieved by grit or sand blasting or thorough wire brushing and then blowing clean with oil free compressed air.
Application:
Pour a small amount of the primer into a clean container ensuring that the main container is tightly resealed. Liberally apply a coat of primer with a soft brush to the required surface. Allow to become tack free before installing MASTERFLEX sealants. If primer is left for more than 3 hours re-priming is necessary. Note: MASTERFLEX PRIMERS are solvent-based.
Equipment care
Clean all brushes immediately with Cleaning Solvent.
Packaging
MASTERFLEX PRIMER NO. 1 is available in 750-ml tins.
Safety precautions
Flammable or highly flammable liquids. Do not apply when smoking or near naked flame. Wear protective gloves and goggles. Use in well ventilated areas and avoid breathing of vapour. In the event of narcosis by inhalation of concentrated vapour, remove person to fresh air and call for medical attention. If in contact with eyes, irrigate thoroughly for at least five minutes with clean, cold water and seek medical attention.
In the event of a fire, extinguish with carbon dioxide, dry chemical or foam fire extinguisher.
Storage
Store under cover out of direct sunlight and protect from extremes of temperature. In tropical climates the product must be stored in an air conditioned environment.
Failure to comply with the recommended storage conditions may result in premature deterioration of the product or packaging. For specific storage advice consult MBT's Technical Services Department.
Note
Field service, where provided, does not constitute supervisory responsibility. For additional information contact your local MBT representative.
MBT reserves the right to have the true cause of any difficulty determined by accepted test methods.