100% Cotton Watercolour Pad
A3 (297 x 420mm) · 300gsm · 15 sheets · Hot Pressed
Same size, other surfaces: Cold Pressed · Rough
Same surface, other sizes: A5 · A4

Big paper and fine detail rarely go together, which is exactly why this pad exists. The Art Spectrum A3 Hot Pressed Cotton Watercolour Pad gives you 15 large, smooth sheets of 100% cotton 300gsm paper for the finished, frame worthy pieces where precision matters across the whole page.

A3 (297 x 420mm) is the size many art prizes, exhibitions and framers work to. Think life size botanical specimens, detailed pet portraits, architectural studies and illustrated maps with room for every label.

★ Art Shed Staff Tip
On a big smooth sheet, plan your whites before the first drop of paint. Mark them lightly in pencil or protect them with masking fluid, because hot pressed paper holds pigment so well that lifting back to pure white across a large area is hard work.
Perfect For
Large botanicalsPet portraitsArchitectural studiesIllustrated mapsExhibition pieces

Large Format, Fine Surface

Fibre
100% Cotton
All cotton for strength across a large sheet, so it survives hours of careful work.
Surface
Hot Pressed (Smooth)
Flat and refined, ideal for crisp linework and smooth gradations at scale.
Weight
300gsm
A solid weight that holds up to layered washes on a sheet this size.
Origin
Italian Mill, Made in Melbourne
Developed with the Magnani paper mill in Italy, pads made in Melbourne by Art Spectrum.

Large detailed work takes time, sometimes days on one sheet. That puts pressure on the paper. Cheap paper starts to fluff and stain where your hand rests and where you rework an area. This one is cotton, cylinder mould made and sized twice, so the surface stays sound from the first pencil line to the last highlight.

It is also acid free, chlorine free and made without optical brighteners. That last point matters more than most people realise. Brighteners can make paper look whiter in the shop, then fade as they age. Without them, the soft natural white you start with is the white your collector still sees in twenty years.

Why Professionals Use It for Finished Work

  • Space for the whole subject. Paint specimens and portraits at a generous scale.
  • Holds up to long sessions. Cotton fibre resists pilling and rubbing during multi day pieces.
  • Archival for sale or exhibition. Museum grade, acid free paper with no brighteners.
  • Made by an Australian brand. Art Spectrum is a long standing Australian art materials maker.

Working Big on Smooth Paper

Tape the sheet to a rigid board on all four sides before you begin. A3 shows any cockling more than smaller sizes, and a taped sheet dries flatter. Work in sections, keeping a wet edge, and use a larger flat or mop brush for backgrounds so you are not dragging a small brush across a big area.

For pure detail, switch to fine rounds and riggers from our watercolour brushes. Need different textures for other projects? See the whole watercolour paper range.

Questions About the Art Spectrum A3 Hot Pressed Cotton Watercolour Pad

Do I need to tape A3 hot pressed paper down?

For anything beyond light washes, yes. Taping all four edges to a board with gummed tape or low tack tape keeps the sheet flat as it dries and gives you a clean border when you peel it away.

Is hot pressed paper good for portraits?

Yes, especially detailed ones. The smooth surface lets you model skin tones with soft glazes and keep eyes and hair sharp. Pet portraits in particular benefit from the fine surface for fur detail.

Does this paper contain optical brightening agents?

No. Art Spectrum states the paper contains zero optical brightening agents (OBAs). That keeps its colour stable over time, which matters for work you plan to sell or exhibit.

Who makes Art Spectrum cotton watercolour paper?

Art Spectrum, an Australian art materials brand, developed the paper with the Magnani paper mill in Italy, a mill on the Pescia River with a long history of making fine artists' papers. The pads are made in Melbourne.

Can I use gouache on hot pressed paper?

Yes. Gouache looks especially good on a smooth surface, where its flat matt finish shows evenly. Keep layers thin so they do not crack, and avoid scrubbing, which can lift the layer underneath.

How easy is it to lift paint from hot pressed paper?

Fairly easy while paint is still damp, thanks to the double sizing. Once colours have dried completely, staining pigments such as phthalos cling harder, so plan your highlights before you paint over them.

Where can I buy large Art Spectrum watercolour paper in Australia?

Art Shed Online stocks the A3 hot pressed pad as an authorised Australian stockist, and ships fast Australia wide. Larger orders for classes and studios are welcome too, or visit our Moorabbin store in Melbourne.

(AS666213)

SKU AS666213
Barcode # 9323926046060
Brand Art Spectrum
Shipping Weight 0.5000kg
Shipping Width 0.050m
Shipping Height 0.050m
Shipping Length 0.050m
Shipping Cubic 0.000125000m3

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