Waterproofing for clay, 100ml to protect object made in clay

Plastic rib half oval 70 x 45 mm SPA1 hardness moderately (Green)

Silicone rib half oval 105 x 50 mm -SPA -3 hardness very flexible (Red)

Plastic rib ovale 94 x 60 mm - SPA 7 Hardness flexible (Yellow)

Plastic rib half oval 140 x 460 mm -SPA -4  hardness hard (Blue)

Flexible half-moon Rib 120mm -23

Hard rectangular rib  - 24

Hard half-oval Rib 95mm - 24A

Rubber half-moon rib PM -185

Rubber half-moon rib 125 mm MM- 184

Rubber half-moon rib 140 mm GM- 183

Wood rib half-ovale - 65