Completely dry maybe Momentum firm foam sheets former surge Inconvenience
80" x 20" (~200 x 50 cm) - Firm Grey Foam Sheet For Use In Upholstery - SELECT THICKNESS - Foam for Various Applications (1" (2.5 cm) Thick Foam) : Amazon.co.uk: Home & Kitchen
Padding direct from the producer
V33 Sheet - H.M Foam & Upholstery
Blue Foam Sheet - High-Density-FIRM Foam Sheet - 80" x 20" x ½" 1" 2" 3" 4" | eBay
HIGH DENISTY FIRM BLUE Firm Foam ALL SIZE SHEET & THICKNESSES CUT TO CUSTOM SIZE | eBay
High Density Upholstery Extra Firm Foam Sheet Cut to Any Size - Etsy UK
Upholstery Foam sheets inches thick cut to any size Density soft medium firm* | eBay
UPHOLSTERY FOAMSOFT MEDIUM FIRM HIGH DENSITY FOAM SHEETS MANY SIZES ! | eBay
High Density Cushions Seat Pad Upholstery White Foam Sheet for Cushions Sofa Chair Foam Sheets for Crafts Firm Beds Dini) White Foam Sheet on OnBuy
Foam sheets
Brillars® Upholstery Foam Sheet Blue High-Density Premium Reducing Pain Extra Firm Foam Replacement to Bench, Sofa & Window Seats Rectangular(60" x 20" x 1") : Amazon.co.uk: Home & Kitchen
FR FOAM EXTRA FIRM LARGE SHEET 13mm/25mm/50mm - Richard Wylie - Foam by Richard Wylie
Foam sheets
Foam Types - Definitions, Qualities and Common Uses | FoamOnline
High Density Upholstery Foam
High Density Cushions Seat Pad Upholstery White Foam Sheet for Cushions Sofa Chair Foam Sheets for Crafts Firm Beds Dini) White Foam Sheet on OnBuy
V38 Firm Foam Sheets - Foam 4 U
Foam Village High Density Blue Foam 20 x 30 Inch [Made to Order] Lowest Price – Luxe & Komfort
High Density Foam Pad 1 Metre Square
DF400M – High-Density Firm Memory Foam Sheets
V33 BLUE HIGH DENSITY FIRM FOAM 16'' X 14'' X 3''
DURAFOAM High Density Blue Firm Foam Sheet For Upholstery, Cushions, Sofa, Beds, Seats, Campervans, Indoor/Outdoor Padding, DIY - DF190B - 80 x 20 x 2 inch (200 x 50 x 5cm) : Amazon.co.uk: Home & Kitchen