Description
✨ Why HDPE Makes This Mold a Great Fit for Floral & Resin Work
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Rigid, stable, dimensionally sound: The HDPE build gives structural integrity — the mold walls stay square and firm throughout pours and cure time. That stability helps ensure your piece cures evenly, and that embedded florals, petals, or keepsakes stay exactly where you placed them. Moldi+1
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Non-stick / easy demold surface: HDPE is widely recognized as a top material for resin molds because resin doesn’t tend to bond to it. As a result, once the resin cures, demolding tends to be cleaner and easier compared with many other mold materials — helping preserve delicate petals, embedded items, or fine details.
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Reusable and cost-effective over time: Because HDPE is durable and resists wear, this mold can be used again and again — especially valuable if you plan to produce multiple floral-embedded pieces, keepsake blocks, or custom orders.
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Perfect scale for medium-large preserves: The 12×9 dimension gives enough space for more substantial arrangements than small cube molds — think larger bouquets, layered floral compositions, or keepsakes meant for display, while still being small enough to handle easily, mix and pour resin without overwhelming volume, and finish in a reasonable time frame.
🎨 Ideal Uses & Projects
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Preserving floral arrangements — create slabs or rectangular keepsakes with petals, dried blooms, leaves, or pressed flowers
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Mixed-media resin art — embed charms, small mementos, pigments, or layered elements with floral additions for decorative pieces
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Memorial or commemorative blocks — arrange small floral keepsakes, nameplates, or tokens inside resin slabs for gifts or remembrance pieces
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Decorative décor — wall-hung or shelf pieces, tabletops for small tables/bases, display slabs, and more
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Small-batch production — great for producing multiple pieces of consistent size for sale, gift sets, or boutique product lines
🛠️ What Makes the MOLDi Mold Stand Out
MOLDi isn’t just selling generic molds — we engineer them for creators focused on floral preservation and resin artistry. With the 12×9 HDPE mold, you get:
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Clean, smooth internal surfaces to help resin flow and cure evenly
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Durable HDPE walls that hold their shape pour after pour
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A user-friendly size that balances workability and creative space — ideal for both one-of-a-kind keepsakes and small-batch production
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A mold optimized for resin + floral preservation, rather than generic resin hobby projects — meaning we designed with clarity, embed placement, and clean demolds in mind













Micaela Obradovich (verified owner) –
Diana R Mitchell (verified owner) –
I love this mold size and have so many plans and ideas to try
moldiadmin (store manager) –
And by the looks of those pieces, that Moldi loves you too!! That is fabulous!!
Lana Hayes (verified owner) –
Kimberly Bell (verified owner) –
Loving this rectangle mold! Great quality and design!
moldiadmin (store manager) –
Thank you Kimberly!!!
Allison R. (verified owner) –
Thank you Moldi for a beautiful and well made, reliable mould to create beautiful resin block pieces! I couldn’t be happier! My first block is done and I’ve learnt a lot already and can’t wait to create more!
moldiadmin (store manager) –
Awesomesauce!!! We can’t wait to see what you create next!!!
April S. (verified owner) –
Wonderful molds as always!
Diane Pimentel (verified owner) –
O molde me parece muito bom mas espero a mais de 45 dias e não chegou.
Carrie Lutz (verified owner) –
Amazing! Love this mold
Renia Bledaki (verified owner) –
Crystal Balcom (verified owner) –
Wouldn’t use any else!
moldiadmin (store manager) –
Aw thank you! ????