SVG Prep

Oracal 651 vs. 631

Oracal 651 is a permanent, glossy adhesive vinyl rated for years of outdoor use. It's the go-to for car decals, water bottles, mugs, outdoor signs, and anything that needs to survive weather, washing, or dishwasher cycles (on dishwasher-safe items with a properly cured application). The adhesive is genuinely permanent — removing it from a painted wall later can take paint with it.

Oracal 631 is a removable, matte-finish vinyl designed for indoor use on walls, windows, and temporary displays. It's built to come off cleanly without residue or damage to the surface underneath, even years later, which makes it the right choice for wall decor, rentals, storefront window displays, and anything you might want to change out later.

Oracal 813: Stencil Vinyl

813 is a low-tack film purpose-built for stenciling — glass etching, wood staining, and painted signs. It resists paint, stain, and etching cream better than standard adhesive vinyl, and it releases cleanly from surfaces without leaving residue, even after sitting under a wet stain or cream for several minutes. See our full glass etching guide for a step-by-step walkthrough.

HTV (Heat Transfer Vinyl) Varieties

All HTV types share one rule: cut mirrored, since you're cutting from the adhesive-backed side. See our temperature and time chart for exact press settings by type.

Sublimation vs. HTV

Sublimation isn't a vinyl at all — it's a dye printed onto special paper, then heat-transferred so the dye turns to gas and bonds permanently into polyester fibers or a polymer coating. The result has zero texture and won't crack, peel, or fade like HTV can, but it only works on polyester fabric or specially coated blanks (mugs, ornaments, aluminum sheets), not cotton. HTV works on nearly any fabric and gives you a physical layer with some texture, but it can eventually crack or peel with heavy washing.

Printable Vinyl

Printable vinyl runs through an inkjet printer first, then gets cut with the machine — useful for full-color designs, photos, or gradients that can't be achieved with flat-color cut vinyl. It comes in both permanent and removable adhesive versions and usually needs a clear laminate sheet applied afterward to protect the ink from scratching and UV fading, especially outdoors.

Sandblast Resist Vinyl

A thicker, more rubbery film than standard stencil vinyl, sandblast resist is built to withstand the physical abrasion of sandblasting rather than a chemical reaction. It's used for deep glass and stone etching where a chemical cream isn't strong enough, and it's typically too thick and stiff to use with standard low-force home cutters — check your machine's material list before buying a roll.

Which Vinyl for Which Project

Outdoor decal or sign: Oracal 651. Wall decor or removable window cling: Oracal 631. Glass etching or wood stain stencil: Oracal 813. T-shirt or fabric design: HTV, matched to the fabric type using the temperature guide above. Polyester tumbler wrap or all-over photo print: sublimation. Full-color photo decal: printable vinyl with laminate. Deep stone or glass carving: sandblast resist.

Whatever type you choose, prep your artwork the same way — reduce it to clean, distinct color layers before cutting so each vinyl color corresponds to exactly one cut file. SVG Prep handles that step automatically from any image.

Storage Tips

Store vinyl rolls standing on end or hanging, not flat and stacked, to avoid creasing. Keep rolls out of direct sunlight and away from temperature extremes — a hot garage or car trunk can soften adhesive and cause rolls to stick to themselves. Reseal opened rolls in their original packaging or a large bag to keep dust off the adhesive side, and use older rolls first since adhesive tack can weaken slowly over a year or two of storage.

Matte vs. Gloss Finish

Beyond permanent versus removable, finish affects how a project looks in different lighting. Glossy vinyl (like standard 651) reflects more light and shows fingerprints and scratches more readily on flat surfaces like laptops or tumblers that get handled a lot. Matte vinyl (like 631, and matte versions of 651) diffuses light instead of reflecting it, which reads as more subtle and is often preferred for wall decor and signage viewed under indoor lighting. Neither is "better" — it's a look decision as much as a durability one.

Adhesive Strength and Surface Matching

Beyond permanent versus removable, adhesive strength needs to match the surface texture. Smooth, non-porous surfaces (glass, glossy plastic, coated metal) hold adhesive vinyl well with standard application pressure. Textured or porous surfaces (unsealed wood, textured walls, fabric) need either a stronger-tack vinyl or a different product entirely — standard 651 on raw unsealed wood, for example, often lifts at the edges within days because the adhesive can't fully contact a rough surface. Sealing porous surfaces first, or choosing a vinyl rated for textured application, solves most of these failures.

Reading a Vinyl Roll's Label

Craft vinyl rolls usually list a product number (like 651 or 631), a color code, a width, and sometimes a durability rating in years for outdoor use. Cheaper generic brands don't always follow Oracal's numbering system, so when buying from a marketplace seller, look for the actual specs described in the listing — "permanent outdoor adhesive vinyl, 5-7 year rating" tells you more than a vague "premium vinyl" label does. If a listing doesn't mention indoor/outdoor use or adhesive permanence at all, treat it cautiously for anything beyond short-term indoor projects.

Mixing Vinyl Types in One Project

Advanced projects often combine multiple vinyl types deliberately — a tumbler with a smooth HTV-style adhesive base layer and a glitter accent, or a sign with a permanent 651 background and a printable vinyl photo insert. When combining types, cut and weed each material separately, then layer them in the same application step using registration marks or a light table to keep alignment consistent. Mixing finishes (matte and gloss) in the same design can also be used intentionally for visual contrast, similar to spot-gloss printing.