Hydroxypropyl Methylcellulose (HPMC) Powder for Gypsum, Tile Adhesive & Craft Casting
Need better thickness and control in your mix? HPMC is a fine powder additive used to improve water retention, workability, and consistency in gypsum, cement, and craft mixes. It is useful for casting, tile adhesive, and plaster work.
What is HPMC? HPMC is a water-soluble polymer. It acts as a thickener and water retention agent. It helps your mix stay workable for longer and prevents fast drying.
You add a small amount of HPMC to your dry mix before adding water. It helps hold moisture inside the mix, improves smoothness, and reduces cracking. In art and craft, it gives better control when pouring or shaping. In construction, it is widely used in tile adhesives and plaster to improve bonding and work time.
Features / Benefits:
- Improves water retention and slows drying
- Gives smoother, creamier mix
- Reduces cracks from fast drying
- Improves workability and open time
- Helps better bonding in cement mixes
- Reduces segregation and uneven texture
Applications / Uses:
- Gypsum and POP casting
- Cement crafts and decorative items
- Tile adhesive and wall putty
- Plastering and repair mortar
- DIY craft and modeling mixes
How to Use (Simple Guide):
- Add 0.2% – 0.5% of total dry weight (Example: 1kg powder = 2g to 5g HPMC)
- Mix well with dry powder first
- Then add water slowly while mixing
- Allow few minutes for full thickening effect
⚠️ Cautions / Safety Notes:
- Do not overdose. Too much can make the mix too thick or sticky
- Always mix dry powder properly to avoid lumps
- Add water slowly. HPMC thickens over time
- Store in a dry, sealed container (absorbs moisture easily)
- Avoid inhaling fine powder. Use a mask when handling
- Keep away from children
- Test small batch before full use
Dimensions & Details:
- Type: Powder
- Color: White to off-white
- Solubility: Water soluble
- Function: Thickener, water retention agent
- Recommended dosage: 0.2% – 0.5%
Package Includes: HPMC Powder (100g pack)
Best for improving thickness, work time, and crack control in gypsum and cement mixes. Good for both craft and construction use.