# Wondertex Prem Filler 12.5kg

# Wondertex Prem Filler 12.5kg

### Fast-Setting Plasterboard Joint Filler

Wondertex Prem Filler is a **plaster-based, fast-setting joint filler**, specially designed for **bedding and filling plasterboard joints, tapes, external metal angles, and corner tapes**. Ideal for professional decorators and builders, it provides a **smooth, strong, and crack-free finish**, ready for sanding and decorating.

## Key Features & Benefits

✅ **Super fine finish** – leaves a smooth surface, perfect for finishing and decorating

✅ **Fast setting** –  60–90 minutes working time, allowing early sanding

✅ **Effortless sanding** – saves time and reduces labour

✅ **Minimal shrinkage** – prevents cracks and ensures long-lasting durability

✅ **Reliable jointing solution** – excellent adhesion with tapes and metal angles

## Product Information

-   **Size:** 12.5kg bag
    
-   **Working Time:** 60–90 minutes
    
-   **Mix Ratio:** 1 part water to 2 parts powder (approx. 6L water per 12.5kg bag)
    
-   **Finish:** Hard-drying, smooth and durable
    
-   **Storage:** Store in a dry place between 5°C and 30°C
    
-   **Shelf Life:** 6 months (unopened bags)
    

## Applications

Wondertex Prem Filler is suitable for:

-   Bedding plasterboard joint tapes (perforated paper & self-adhesive mesh)
    
-   Filling external angles and corner tapes
    
-   Repairing damaged plasterboard
    
-   Preparing a smooth, paint-ready finish
    

## Why Choose Wondertex Prem Filler?

-   Trusted by plasterers, builders, and decorators across the UK
    
-   Manufactured to **ISO 9001, ISO 14001 & OHSAS 18001 standards**
    
-   Strong adhesion with tapes and metal angles for a flawless joint
    
-   Reduces rework thanks to minimal shrinkage and crack resistance
    

## How to Use

1.  **Preparation:** Ensure plasterboards are fixed securely, screws driven flush, and surfaces clean.
    
2.  **Mixing:** Add 12.5kg Wondertex Prem Filler to 6 litres of clean water. Mix until smooth.
    
3.  **Application:** Apply filler to tapered edges, embed jointing tape, and cover with a smooth finish.
    
4.  **Finishing:** Once dry, apply Wondertex Prem Finish for a flawless top coat. Sand lightly if required.

## Details

- **Price:** 9.02 GBP
- **Vendor:** Wondertex
- **Tags:** Filler, Premier, Wondertex

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Please call or email | 9.02 GBP | In stock |

## Images

- Wondertex Premier Filler

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> Source: [Next Day Insulation](https://nextdayinsulations.com/products/wondertex-prem-filler)
> Updated: 2026-07-20