---
product_id: 313736487
title: "Cardstock Warehouse Sirio Ultra Black - 8.5 x 11\" - 104 Lb. / 280 Gsm Premium Cardstock Paper - 25 Sheets"
brand: "cardstock warehouse paper company"
price: "3336 som"
currency: KGS
in_stock: false
url: https://www.desertcart.kg/products/313736487-cardstock-warehouse-sirio-ultra-black-8-5-x-11-104
store_origin: KG
region: Kyrgyzstan
---

# 25 sheets per pack 8.5 x 11 inch size 104 Lb weight Cardstock Warehouse Sirio Ultra Black - 8.5 x 11" - 104 Lb. / 280 Gsm Premium Cardstock Paper - 25 Sheets

**Brand:** cardstock warehouse paper company
**Price:** 3336 som
**Availability:** ❌ Out of Stock

## Summary

> 🖤 Elevate Your Craft with Ultra Black Brilliance!

## Quick Answers

- **What is this?** Cardstock Warehouse Sirio Ultra Black - 8.5 x 11" - 104 Lb. / 280 Gsm Premium Cardstock Paper - 25 Sheets by cardstock warehouse paper company
- **How much does it cost?** 3336 som with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.kg](https://www.desertcart.kg/products/313736487-cardstock-warehouse-sirio-ultra-black-8-5-x-11-104)

## Best For

- cardstock warehouse paper company enthusiasts

## Why This Product

- Trusted cardstock warehouse paper company brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Eco-Friendly Choice:** Acid-free, lignin-free, and chlorine-free for guilt-free crafting.
- • **Uncoated Excellence:** Takes white ink and mixed media like a pro.
- • **Unmatched Intensity:** Experience the deepest black with our solid-core cover.
- • **Crafting Versatility:** Perfect for cardmaking, invitations, and more.
- • **Innovative Composition:** Light-fast and oxidation-resistant for lasting quality.

## Overview

The Cardstock Warehouse Sirio Ultra Black is a premium 104 Lb cardstock paper, measuring 8.5 x 11 inches, available in a pack of 25 sheets. Its unique solid-core design ensures a consistent black color throughout, making it ideal for various crafting projects. With an uncoated surface that excels in ink absorption and a commitment to eco-friendly materials, this cardstock redefines quality and performance in the world of black paper.

## Description

This black cardstock has a unique and intense shade of black like no other. It's the new black refined for performance. An innovative composition of pulp processed without carbon black, prevents oxidation and is extremely light-fast. Uncoated surface takes white ink and mixed media color applications like no other. Why do black when you can do Ultra Black.

## Features

- 104 Lb Solid-Core Cover | 280 Gsm | 8.5 x 11 inch - 25 Sheet Pack
- A unique black cardstock - intense black like no other - It's the new black redefined for performance. An innovative composition of pulp processed without carbon black, prevents oxidation and is extremely light-fast. Uncoated surface takes white ink and mixed media color applications like no other. Why do black when you can do Ultra Black.
- Premium quality, uncoated finish, acid free, lignin free, elemental chlorine free. Solid color paper is solid-core (no white core, same color throughout)
- Perfect for card backs, cardmaking, announcements, invitations and craft projects
- Not recommended for use as black photography background

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Cardstock Warehouse Paper Company, Inc. |
| Brand | Cardstock Warehouse Paper Company |
| Item Weight | 14.8 ounces |
| Product Dimensions | 11 x 8.5 x 0.31 inches |
| Item model number | CWUB-SIRIOULTRA BLACK105-8511-25PK |
| Is Discontinued By Manufacturer | No |
| Color | Ultra Black |
| Material Type | Cardstock |
| Size | 8.5 x 11 |
| Sheet Size | 8.5-inchx11-inch |
| Manufacturer Part Number | CWUB-SIRIOULTRA BLACK105-8511-25PK |

## Product Details

- **Material:** Paper
- **Brand:** Cardstock Warehouse Paper Company
- **Colour:** White
- **Size:** 8.5 x 11
- **Item weight:** 14.75 Ounces

## Images

![Cardstock Warehouse Sirio Ultra Black - 8.5 x 11" - 104 Lb. / 280 Gsm Premium Cardstock Paper - 25 Sheets - Image 1](https://m.media-amazon.com/images/I/61AHKsNAX2L.jpg)
![Cardstock Warehouse Sirio Ultra Black - 8.5 x 11" - 104 Lb. / 280 Gsm Premium Cardstock Paper - 25 Sheets - Image 2](https://m.media-amazon.com/images/I/41YdyB80kjL.jpg)
![Cardstock Warehouse Sirio Ultra Black - 8.5 x 11" - 104 Lb. / 280 Gsm Premium Cardstock Paper - 25 Sheets - Image 3](https://m.media-amazon.com/images/I/719MskXul7L.jpg)
![Cardstock Warehouse Sirio Ultra Black - 8.5 x 11" - 104 Lb. / 280 Gsm Premium Cardstock Paper - 25 Sheets - Image 4](https://m.media-amazon.com/images/I/81FWGT3Xt-L.jpg)
![Cardstock Warehouse Sirio Ultra Black - 8.5 x 11" - 104 Lb. / 280 Gsm Premium Cardstock Paper - 25 Sheets - Image 5](https://m.media-amazon.com/images/I/61peru+dNEL.jpg)

## Questions & Answers

**Q: what gsm is this please?**
A: This paper is 280 gsm.

**Q: I am looking for an ultra black matt paper for taking pictures of miniatures. Is this paper matt or glossy?**
A: Hello, This paper has a matt finish, and while it is considered ultra black in terms of cardstock paper on the market, we know from experience that it is not as black as a black background made specifically for photography. We recommend that you purchase a black background made specifically for photography if that is what you would be using it for.

**Q: Does this cardstock have a smooth texture?**
A: Hello, Yes this is a satin-smooth finish cardstock paper made without carbon black and is ph neutral.

## Frequently Bought Together

- Cardstock Warehouse Sirio Ultra Black - 8.5 x 11" - 104 Lb. / 280 Gsm Premium Cardstock Paper - 25 Sheets
- Cardstock Warehouse Pop-Tone Pink Lemonade Cardstock Paper – 25 Sheets, 8.5 x 11" - 100 lb / 270 GSM Premium Pink Card Stock for Die-cutting, Crafts, Printing, Card Making and DIY Projects
- Cardstock Warehouse Stardream Silver Cardstock Paper - 25 Sheets, 8.5 x 11" – 105 lb / 284 GSM Premium Metallic Silver Card Stock for High-end Printing, Card Making, Die-cutting & DIY Projects

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**Shop now:** [https://www.desertcart.kg/products/313736487-cardstock-warehouse-sirio-ultra-black-8-5-x-11-104](https://www.desertcart.kg/products/313736487-cardstock-warehouse-sirio-ultra-black-8-5-x-11-104)

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*Product available on Desertcart Kyrgyzstan*
*Store origin: KG*
*Last updated: 2026-01-24*