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24-Pack of 10 Oz. Geocel GC55103 Black 4500 Roof Bonding Sealant | Roofing supplies, roof repair, 4500 Series 55103

Rated4.7(692 ratings)Only 3 left

Good price

$170.97 is 11% below the $193.73 it normally sells for.

Now
$170.97
Normally
$193.73
Lowest in 139 days
$162.97(Sep 15)
Highest
$210.72
Evidence: Strong139 days tracked142 price changes

Where today's price sits

View on amazon.com (opens in a new tab)

Prices change. Confirm the price on Amazon before you buy. TrackPin may earn a commission if you buy, at no cost to you; it never changes a verdict.

Get an email when the price drops

Good: 5%+ below normal. Great: 20%+ below. One email when it happens, at a price below today's $170.97. No account, no newsletter.

Amazon price jumps and real deals, posted on X: @trackpindeals (opens in a new tab)

The listing's crossed-out price

Holds up

The listing shows

crossed out: Typical $193.73 −12%

Against its normal price

−11% vs $193.73

Typical $193.73 (−12%) holds up: today's price is 11% below normal.

The crossed-out price is the reference shown on the listing. We don't know how it was set; we only compare it with prices we've observed. How we check →

Price history

Tracked since Jun 25 · 139 days · 142 price changes

Ahead of Black Friday 2026 (Nov 27), it is already 11% below its normal price of $193.73. 24-Pack of 10 Oz. Geocel GC55103 Black 4500 Roof Bonding Sealant price history, checked Nov 12, 2026: current price $170.97, normal (typical) price $193.73, average $195.77 over 139 days, lowest $162.97 (Sep 15, 2026), highest $210.72 (Oct 2, 2026).

Loading the price chart.

  • Price
  • Not checked for 3+ days
  • Normal $193.73
  • 5% or more below normal

How often does it drop below normal?

In the 139 days we've tracked it, it stayed 5% or more below today's normal price for an hour or more 9 times, typically lasting less than a day. The last time ended Nov 12. It's below normal right now, for less than an hour so far.

A count of what happened, not a prediction.

More real deals in Industrial & Scientific

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Get this as JSONThe same verdict and prices, from the TrackPin API.
GET/api/v1/product/B0B3NCVNHZ
Request
curl https://trackpin.co/api/v1/product/B0B3NCVNHZ \
  -H "x-api-key: $TRACKPIN_API_KEY"

This is exactly what the API returns for this product. Free keys include 100 requests a day.

Request a key
Live response, As of 23:54 UTC
{
  "asin": "B0B3NCVNHZ",
  "title": "24-Pack of 10 Oz. Geocel GC55103 Black 4500 Roof Bonding Sealant | Roofing supplies, roof repair, 4500 Series 55103",
  "image": "https://m.media-amazon.com/images/I/510-+wwu2iL._AC_SL500_.jpg",
  "currency": "USD",
  "category": "BISS Basic",
  "category_label": "Industrial & Scientific",
  "in_stock": true,
  "price": {
    "current_cents": 17097,
    "reference_cents": 19373,
    "discount_pct": 11.75,
    "is_deal": true,
    "observed_at": 1794519582382,
    "changed_at": 1794519582382,
    "checked_at": 1794519582382,
    "source": "stored"
  },
  "verdict": {
    "label": "good",
    "text": "Good price",
    "pct_vs_normal": 11.75,
    "evidence": "strong",
    "stale": false,
    "suspect": false,
    "steady_since": null,
    "sentence": "Good price. $170.97 is 11% below the $193.73 it normally sells for."
  },
  "listing_claim": {
    "label": "Typical:",
    "listing_reference_cents": 19373,
    "claimed_pct": 12,
    "real_pct": 11.75,
    "class": "holds_up",
    "observed_at": 1794519593221
  },
  "stats": {
    "min_cents": 16297,
    "max_cents": 21072,
    "avg_cents": 19577,
    "history_days": 139,
    "price_levels": 310,
    "price_changes": 142,
    "distinct_prices": 17,
    "lowest_at": 1789492006660
  },
  "history": [
    {
      "price_cents": 17189,
      "from": 1794506285105,
      "to": 1794507143672
    },
    {
      "price_cents": 19995,
      "from": 1794512317732,
      "to": 1794513261777
    },
    {
      "price_cents": 18075,
      "from": 1794518928526,
      "to": 1794518928526
    },
    {
      "price_cents": 17308,
      "from": 1794519457981,
      "to": 1794519457981
    },
    {
      "price_cents": 17097,
      "from": 1794519582382,
      "to": 1794519582382
    }
  ],
  "last_seen": 1794519593221
}
// … 305 more steps in the full response

Normal price: the lowest price level the product held for at least 15% of the last 45 days (about a week). Prices within 3% of each other count as one level, and we use the lowest price in that level. How we calculate it → Prices are observations of amazon.com and may be incomplete or delayed. TrackPin is not affiliated with Amazon.