How to Seal Glitter on Blow Mold Nutcrackers (Without Ruining the Sparkle)

Glitter can take a blow mold nutcracker from cute to WOW — but sealing glitter the wrong way can dull sparkle, cloud the finish, or cause peeling over time.

This guide gives you clear answers fast, plus step-by-step instructions for sealing glitter on blow molds, including nutcrackers with both painted and glittered areas.

🛒 Quick Shop: Supplies Used

⭐ Quick Answers (Save This!)

  • Best glitter sealer: Krylon Glitter Blast
  • Best outdoor option: Rust-Oleum 2X Clear
  • Indoor only: Minwax Polycrylic
  • Glitter + paint? Seal separately
  • Always: Light coats, never heavy

Step 1: Prep Your Blow Mold

Proper prep helps glitter and sealers adhere and last longer.

  • Wash with mild soap and water
  • Lightly degloss using a Scotch-Brite pad or fine sanding sponge
  • Wipe clean and allow to fully dry

You’re not sanding heavily — just removing surface shine so products can grip.

Step 2: Primer (Optional but Recommended)

  • Use a plastic-safe primer on bare plastic
  • Helps paint and glitter adhesive apply evenly
  • Especially helpful for outdoor blow molds

Allow primer to fully cure before painting or glittering.

Step 3: Choose the Right Glitter

Best Glitter Types

  • Fine or ultra-fine craft glitter (smoothest finish)
  • Loose glitter over adhesive = boldest sparkle
  • Glitter paint creates a softer shimmer

Chunky Glitter Notes

  • Best for accent areas only
  • Requires extra sealing coats
  • More likely to shed if rushed

Step 4: Applying Glitter

  1. Apply a clear adhesive or tacky base coat
  2. Sprinkle glitter generously
  3. Tap off excess
  4. Allow glitter to cure at least 24 hours before sealing

Do not seal early. Trapped moisture can dull sparkle.

Best Sealers for Glitter on Blow Molds

Glitter is trickier to seal because even glossy sealers can slightly soften sparkle. These are the best options for sealing glitter on plastic blow molds and blow mold nutcrackers.

Krylon Glitter Blast Clear Sealer

Best for: Maximum sparkle

  • Designed specifically for loose glitter and glitter paint
  • Locks down glitter while preserving the most sparkle
  • Ideal for crowns, trim, buttons, and high-impact glitter areas

#walmartpartner

Rust-Oleum 2X Ultra Cover Clear (Gloss or Satin)

Best for: Outdoor durability

  • Dries clear
  • Won’t yellow
  • Durable enough for outdoor blow molds

Note: This may slightly soften sparkle compared to Krylon Glitter Blast, but it offers excellent protection.

#walmartpartner

Minwax Polycrylic (Indoor Use Only)

Best for: Indoor or display-only pieces

  • Dries crystal clear (gloss or satin recommended)
  • Low odor and easy cleanup
  • Excellent for white or pastel glitter

Not ideal outdoors: It’s water-resistant but not waterproof, and may cloud, peel, or crack with prolonged moisture or UV exposure.

#WalmartPartner

Product Comparison Table

Product Best For Finish Indoor / Outdoor Notes
Krylon Glitter Blast Sparkle Gloss Indoor & Outdoor Best for loose glitter
Rust-Oleum 2X Clear Protection Gloss / Satin Indoor & Outdoor Slight sparkle softening
Minwax Polycrylic Display Gloss / Satin Indoor ONLY Not waterproof

How to Seal a Nutcracker When Only Some Parts Are Glittery

If your blow mold nutcracker has both painted and glittered areas, don’t seal everything the same way. This is the easiest way to protect paint without dulling glitter.

  1. Seal glitter areas first
    • Use Krylon Glitter Blast
    • Apply 2–3 very light coats
    • Allow to cure for 24 hours
  2. Mask glitter carefully
    • Use painter’s or low-tack tape
    • Press gently — do not crush glitter
  3. Seal painted areas separately
    • Use Rust-Oleum 2X Clear (Gloss or Satin)
    • Use light coats and allow full dry time between coats

What to Avoid

  • Do not spray one heavy all-over coat
  • Do not flood glitter with standard clear spray
  • Do not brush sealers over glitter
  • Avoid Mod Podge — it can dry cloudy on curved plastic surfaces, especially over glitter

Frequently Asked Questions

Can you seal glitter on plastic blow molds?

Yes. Let glitter fully cure, then seal with multiple light coats using a glitter-safe spray sealer.

What is the best sealer for glitter on blow molds?

Krylon Glitter Blast preserves the most sparkle. Rust-Oleum 2X Clear is a great option when you want extra durability.

Can glittered blow molds be used outdoors?

Yes, but outdoor exposure may soften sparkle over time. Proper prep and sealing helps extend longevity.

Should glitter and paint be sealed the same way?

No. Seal glitter first, let it cure, then mask glitter and seal painted areas separately to avoid dulling sparkle.

Can I use Minwax Polycrylic on glitter blow molds?

Minwax Polycrylic is best for indoor display pieces only. It is not waterproof and may peel or cloud outdoors.

Final Pro Tip

Outdoor glittered blow molds may naturally lose some sparkle over time — that’s normal. Proper prep, patience, and the right sealer will keep your blow mold nutcracker looking magical for many seasons.

Save this guide, pin it for later, or share it with a friend before starting your next blow mold project.

#WalmartPartner

Share This Guide

Know someone glittering a blow mold? Share this guide on Facebook so they don’t ruin the sparkle ✨

Share on Facebook