what is the larges sized block of 300 pound, cold pressed?

I believe it is 10 X 14 inches. That is the largest arches 300 lb watercolor BLOCK paper pad I’ve seen.

Can both sides of 300lb cold-pressed paper be used for Watercolor?

Yes! Whatever side of paper of the paper you prefer. 300lb. Water color paper is quite heavy so less likely to buckle.

How thick (NOT weight) is each sheet in inches or mm?

This is 300 lb water color paper. It isn't measured in thickness, whether inches OR millimeters. It is just as thick (or just as thin) as all other 300 lb watercolor paper. The only way to tell how thick a sheet is would be to put a micrometer on it. All that said, it is not _very_ thick--perhaps about as thick as stiff poster board.

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Water Colour Block, 300 lb / 640GSM, Cold Pressed, 9" x 12"

Product ID: 45732072

Details

Brand
Arches
Color
White
Material
Paper
Paper Dimensions
9 x 12 inches
Paper Finish
Watercolor

📏9" x 12" ideal portable size

🧻300 lb / 640 GSM heavyweight durability

❄️Cold pressed texture for perfect paint control

¥18166

Duties & taxes included

In stock

Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🎨 Elevate your art with the paper that masters have trusted for centuries!

READY TO CREATE BLOCK - 10-sheet glued block with protective cover keeps your masterpiece pristine and portable
HERITAGE YOU CAN TRUST - Crafted since 1492, Arches guarantees archival quality for your finest works
GELATIN SIZED TO THE CORE - Exclusive sizing enhances color vibrancy and effortless blending, wet or dry
TIMELESS COTTON CRAFTSMANSHIP - 100% natural white cotton fibers for unmatched texture and longevity
UNRIVALED STRENGTH FLEXIBILITY - Cylinder mold process ensures tear-resistant, scratch-proof sheets that slacken evenly when wet

Arches Water Colour Block is a premium 9" x 12" cold pressed watercolor paper block featuring 10 heavyweight (300 lb / 640 GSM) sheets made from 100% natural white cotton. Its unique cylinder mold process and exclusive gelatin sizing ensure exceptional durability, vibrant color transparency, and superior paint control. Glued on all sides with a protective cover, this block is designed for professional artists seeking archival quality and timeless performance.

Specifications

ASIN	B01J9UMQHQ
Best Sellers Rank	#18,897 in Arts, Crafts & Sewing ( See Top 100 in Arts, Crafts & Sewing ) #121 in Watercolor Paper
Brand	Arches
Brand Name	Arches
Color	White
Customer Reviews	4.8 out of 5 stars 704 Reviews
Global Trade Identification Number	03700417950659
Included Components	Contains one block with 10 sheets, 640 GSM
Item Dimensions L x W	12"L x 9"W
Item Type Name	140lb / 300GSM, Cold Pressed
Item Weight	1.4 pounds
Manufacturer	ColArt Americas
Manufacturer Part Number	1795065
Material	Paper
Material Type	Paper
Model Number	1795065
Number of Items	1
Paper Dimensions	9 x 12 inches
Paper Finish	Watercolor
Paper Weight	10
Product Dimensions	12"L x 9"W
Recommended Uses For Product	Watercolor
Sheet Count	10
Style	Cold Pressed
Unit Count	1 Count
Warranty Description	Premium Art Papers Since 1492 - After five centuries, the Arches philosophy remains the same: to make the best papers and enable you to produce your finest works while guaranteeing they will last as long as our papermaking heritage

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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TrustScore 4.5 | 7,300+ reviews

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The MOLLE sheath is of exceptional quality. Very happy with my purchase.

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Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

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