UART Help Hub
Whether you’re choosing your first sheet or troubleshooting a tricky under-painting, you’re in the right spot. Browse the categories, jump straight into our most-asked questions below, or send us a question.

Getting Started
Getting Started
We recommend our 400 grade – a favorite of artists and an art paper of moderate tooth. Once you begin to paint with UART, you can determine if you require a rougher or finer tooth to fit your style, medium and technique. We suggest our lower grades (240-320) for artists who like to layer and higher grades (400-800) for those whose work is more delicate. Whatever paper grade you choose, you can trust that UART sanded art paper will complement your inspiration and maintain your work’s integrity in the long run.
The most common feedback we receive from artists who have switched to our art paper is that they agree both the tooth and the consistency of UART are miles ahead of other pastel papers. Unlike other manufacturers, UART employs a state-of-the-art manufacturing process that ensures a consistent grain application on every inch of the paper. In addition, our paper allows for seamless blending while reducing flaking, maintaining the look of your pastel. While UART is of the highest-quality pastel papers, it’s also incredibly affordable, rivaling lesser quality papers in terms of value.
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Loose sheets: 9×12, 12×18, 18×24, 21×27, 24×36, 27×40 inches
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Mounted boards: 8×10, 9×12, 11×14, 12×12, 12×16, 16×16, 16×20, 18×24 inches
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Pads: 9×12 in., 10 sheets per pad inches
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Roll: 56 in. wide × 9 m long
Media & Techniques
UART paper works not only with soft and hard pastels, but also with charcoal, colored pencils, graphite, and both water- and oil-based media. Alcohol-based markers or inks can also be used, and thanks to its sanded surface, the paper holds multiple layers well, often without the need for a fixative.
UART paper does NOT require any fixatives. One of the biggest advantage of using our sanded pastel paper is that almost all the pastel material stays on the paper. The sanded surface allows for maximum “absorption” and leaves very minimum material waste. We do recommend to frame your painting with a spacer between your artwork and the glass.
With its sturdiness, thickness and grade, UART can manage traditional underpainting without any adverse side effects. However, for additional peace-of-mind when underpainting, we suggest purchasing our mounted pastel boards or mounting the sanded art paper yourself before applying liquid media. The paper will wave if left unmounted. For more information about underpainting techniques on UART, please check out our videos page.
Care, Storage & Mounting
Unfortunately, curling is a natural occurrence in sandpaper and is by no means not a defect of the paper. Relative humidity (RH) is a very important factor in the storage of our sanded papers. Optimum storing conditions are 35% to 50% RH at a temperature range of 60F to 80F. High humidity in the bonding (resin) will force the paper to curl upwards (grit side up) while low humidity will push the paper to curl downwards.
To eliminate any curling issues, we recommend that you dry mount our paper prior to painting or drawing on a rigid surface such as foam core or gatorboard. We also recommend storing our paper in its original package or in a tightly sealed plastic container. The container should be kept away from windows and any direct heat sources.
If you paper has already curled, there are a few ways to correct this issue, although we do not guarantee that the techniques will eliminate curling completely:
1. Start by reverse rolling the paper. If the paper is curling upwards, roll it in the opposite way. Tie it with a couple of rubber bands for a few hours.
2. Remove the rubber bands and lay the paper on a flat surface. To protect the paper, cover it with kraft paper or any covering material and place heavy objects on top such as large books, weights, bricks, etc… to keep the paper for curling back.
3. If possible, store it in a tightly sealed container in a cool place.
The video below demonstrates a wet and dry technique to remove the curling:
https://www.youtube.com/watch?v=YHh3zW9dI34
Keep sheets in their original packaging or a tightly sealed plastic container, away from direct sunlight and heat. Store at moderate humidity (35–50 % RH) and room temperature (60–80 °F) to prevent curling or damage.
Any grade and size of UART paper can be purchased pre-mounted on illustration board at a price that’s competitive with any other professionally-mounted pieces. However, if you prefer to mount the paper yourself, we suggest using Grafix Double Tack Mounting Film. It is also acid free and comes in 9″x12″, 18″24″ & 24″x36″ sheets.
As an alternative, you can purchase our own Peel’N’Stick sheets. More info about those sheets HERE
Buying & Availability
Our full line of paper is available to purchase through our online store. You can also purchase our paper through local and local retailers’ stores as well as Amazon.com.
We have a 30-day return policy, which means you have 30 days after receiving your item to request a return.
To be eligible for a return, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase.
To start a return, you can contact us at help@shop.uartpastelpaper.com. Please note that returns will need to be sent to the following address:
UARTPastelPaper.com
ATTN: RETURNS DEPT
18B Ford Products Road
Valley Cottage, NY 10989
If your return is accepted, we’ll send you a return shipping label, as well as instructions on how and where to send your package. Items sent back to us without first requesting a return will not be accepted.
Order Processing
All orders are processed within 1-3 business days (Monday through Friday, excluding U.S. federal holidays) after payment is confirmed. Orders placed on weekends or holidays will begin processing the next business day.
You will receive a confirmation email with tracking information once your order has shipped.
Shipping Options
We ship to all 50 U.S. states. Shipping rates are calculated at checkout based on your location and order weight.
| Method | Estimated Delivery |
|---|---|
| Economy (5-8 days) | 5-8 business days from shipment |
| Standard (3-6 days) | 3-6 business days from shipment |
| Express (1-4 days) | 1-4 business days from shipment |
Delivery estimates begin from the date of shipment, not the date of order placement.
Shipping Address
Please double-check your shipping address at checkout. We are not responsible for orders delivered to an incorrectly entered address. If you notice an error after placing your order, contact us immediately at help@shop.uartpastelpaper.com – we can only make changes before the order ships.
Order Tracking
Once your order ships, you will receive a shipping confirmation email with a tracking number. You can use this number to track your package directly through the carrier’s website or via our store.
Please allow up to 24 hours for tracking information to become active after receiving your confirmation email.
Lost or Damaged Shipments
If your order arrives damaged or does not arrive within the estimated delivery window, please contact us at help@shop.uartpastelpaper.com within 7 days of the expected delivery date. Please include:
- Your order number
- A description of the issue
- Photos of any damage (if applicable)
We do not offer free sample packs at this time, but our paper is available for purchase in packs, pads, mounted boards, and Peel’n’Stick sheets.
Still stuck? Ask the UART team
Send your question below and we’ll reply within one business day with a clear, practical answer. Our team will make sure you get the information you need.
Level-up your pastel game
Watch step-by-step demos, download technique guides, and discover pro artist tips in our Learning Center.
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