Asahipen (For Concrete) Water-Based Waterproofing Paint

1) Waterproof paint for concrete, color: light gray. 2kg
Covers 7.2-8.8 sq meters with 2 coats
2) Waterproof sealer (primer). 1kg, color: clear
Covers 9-11 sq meters with 1 coat
This set can cover an area of approximately 6 tatami mats.
I purchased this, but when I decided to paint and checked the instructions, I realized it was for concrete and not suitable for my FRP balcony. Therefore, I am listing it for sale.
The total cost was around 10,000 yen.
Considering shipping costs, I have set this price.
Please feel free to ask any questions in the comments.
Thank you.