Why Choose Gamblin PVA Size
Gamblin PVA Size is a high-quality, neutral pH Polyvinyl Acetate (PVA) Size designed to protect raw canvas and paper before applying oil grounds or oil colours. Recommended by conservation scientists as a safer alternative to traditional rabbit skin glue, PVA Size provides a stable, flexible barrier that does not swell, shrink, or yellow over time.

Professional-Grade Canvas Preparation

• Seal raw canvas: Apply a single coat to most canvases; heavier or very open-weave fabrics may require front and back applications.

• Pre-stretch guidance: For large or lightweight linen canvases, apply PVA Size before stretching to prevent buckling or wrinkles.

• Flexible and durable: Unlike rabbit skin glue, PVA Size maintains flexibility and does not absorb moisture from the environment.

• Clean and safe: Brushes can be cleaned with soap and water; the formula is free of animal byproducts and emits no harmful volatiles.

Paper Preparation with PVA Size

• Seal heavy water-media, mixed-media, and printmaking papers for oil painting.

• Only the painting side requires sealing; some papers may need taping to a rigid surface to prevent wrinkling.

• Typically, two coats are recommended with full drying time (~24 hours) before applying Oil Ground or Oil Colours.

Using PVA Size as a Ground
PVA Size can also be used on its own as a thin protective ground, preserving the natural colour and texture of canvas or paper. Two applications reduce absorbency while allowing the surface to show through in your painting.

Key Features:

• Neutral pH, flexible, and non-yellowing

• Protects canvas and paper from oil paint acidity

• Ideal for pre-stretching, heavy, and lightweight fabrics

• Suitable for use alone or under Oil Ground

• Safe, animal-free, and easy to clean