Aqua Block Plus Application Sequence: When to Use TERM-seal Primer

The TERM-seal Aqua Block Plus application sequence starts with assessing the substrate, followed by priming where the surface is porous, friable, dusty or otherwise requires improved preparation. TERM-seal Aqua Block Primer 5L is the dedicated primer for this step before applying Aqua Block Plus.

Where the primer fits

Primer is used before Aqua Block Plus, not as a replacement for the barrier or sealant. Its role is to prepare the relevant surface within the Aqua Block Plus system so the subsequent product can be applied to a suitably conditioned substrate.

Available product information identifies the primer for masonry-related surfaces, including concrete, brick and fibrous pour concrete. The associated Aqua Block Plus products are intended for applications involving masonry, concrete and brickwork, but the exact substrate suitability should always be checked against the current product label and project requirements.

The basic application sequence

1. Confirm the system and substrate

First, confirm that the project calls for TERM-seal Aqua Block Plus and its compatible primer. The 5 L container is intended specifically for the primer stage, while Aqua Block Plus is applied afterward as the associated sealing or barrier product.

2. Prepare the surface

The surface must be suitable for priming. Remove dry or loose material and address dust, wax, mould-release residue or other contamination that could affect adhesion, following the directions for the particular application. This article focuses on the sequence rather than repeating the full surface-preparation procedure.

3. Apply TERM-seal Aqua Block Primer

Apply the primer to the relevant masonry, concrete or brick surface as directed on the container label. The primer is supplied in a 5 L handled container, making it practical for surface-preparation work on site.

4. Observe the label requirements

Before applying Aqua Block Plus, follow the primer label instructions regarding treatment, drying or readiness for the next coating. Exact coverage, drying time and application conditions are not provided in the supplied product data, so they should not be estimated from a similar primer.

5. Apply Aqua Block Plus

Once the primed surface meets the label requirements, apply Aqua Block Plus according to its own instructions. The application method and number of coats can vary with the situation. For example, available product information describes priming before treatment of slab edges, construction joints and general wall, concrete or masonry applications, but the applicable directions should be confirmed for the job.

Why priming matters

Some masonry surfaces are porous, friable or dusty. These conditions can make consistent application and adhesion more difficult. The Aqua Block Plus product information states that such surfaces should generally be primed with TERM-seal Aqua Block Primer according to the label directions.

Priming is therefore a substrate-dependent step. It should not be treated as an optional decorative undercoat or substituted with an unspecified general-purpose product when the Aqua Block Plus system requires TERM-seal primer.

Situations where the sequence is important

• Slab edges: Clean and prime the slab edge before applying Aqua Block Plus, following the relevant system directions.
• Construction joints: After cleaning the concrete around the joint, apply primer before the Aqua Block Plus treatment and any specified reinforcing component.
• Walls and masonry: General wall, concrete and masonry applications may require the surface to be cleaned and primed before the barrier product is applied.
• Porous or friable surfaces: Priming is particularly relevant where the substrate may absorb product or shed dust and loose particles.

What this 5 L pack includes

This listing is for TERM-seal Aqua Block Primer 5L, identified by catalogue code SBG036. It is the primer component only and does not include Aqua Block Plus. Check the pack label before use for current instructions, safety information, storage requirements and any restrictions applying to the intended surface.

Coverage and drying time depend on the substrate and application conditions, but no verified figures are supplied here. For that reason, plan the work around the current label or manufacturer documentation rather than assuming that the full 5 L pack will cover a particular area.