Apollo A7520 GP MCPU Roller Coatable Adhesive

Product overview

Apollo (A7520) was developed specifically for applications in the panel manufacturing and laminating industries. It isa one-component, moisture-curing, Polyurethane adhesive.

featured properties

• Suitable for a wide range of markets: can be used in the manufacture of cold stores, caravans, mobile homes and offices
• Complete peace of mind: due to its high-strength weatherproof bond and excellent temperature resistance
• Minimises task-time: one-component with a low coat weight and excellent coverage
• Extremely versatileand durable: bonds a wide range of materials

Developed for

• Cold stores
• Caravans
• Mobile homes
• Offices

Instructions for Use:

Surface preparation/priming

1. Materials to be bonded should be clean and free from dust, grease and other contaminants. Metals should be stored in a warm environment, prior to bonding, to avoid chilling of the glue-line (which can lead to extended cure times).

Note: Most pre-finished metals have backing coats which are well-suited to adhesive bonding (sufficient adhesion can be achieved with no primer required in most cases). However, certain grades of Aluminium, Galvanised Steel and Plastics may require the use of a primer; a trial panel should be prepared in all cases when new materials are to be used to determine compatibility levels.

Application

1. The adhesive should be applied evenly over one side of each glue line by means of a mechanical roller coater, hand roller or notched trowel. The amount applied will vary according to the porosity of the substrates but will normally be in the range 100-125gsm.

2. After application of the adhesive a fine mist of atomised water must be applied to the adhesive, the amount required being approximately 10% of the weight of adhesive. The surfaces to be bonded should then be brought together as quickly as possible, to minimise water evaporation, and placed under pressure within the open time of the adhesive. The pressure required will depend to a great extent on the nature of the substrates being bonded but is usually in the range of 0.5 to 0.9bar.

3. Pressure should be maintained until the adhesive is sufficiently cured to permit handling of the bonded item(see processing guide). Full cure of the adhesive is not obtained for 24 hours and handling within this period should be kept to a minimum.