P-Line TCB 8 Braid: US Teflon-Label Reference

Diameter chart, reel capacity & backing guide

P-Line TCB 8 Green Teflon-labeled PXB8150-20 spool showing 20 lb and 150 yd
Actual US Teflon-labeled Green 20 lb/150 yd spool; undated photo hosted by Tackle Warehouse. Not a Slick Coat illustration.

US Teflon-label reference: Green TCB 8 20 lb/150 yd and Hi Vis Yellow 50 lb/300 yd. The official 2021 US catalog connects X-Braid, XTCB-8, and this Teflon-labeled family. The photos have no established production year; this page does not assert the current Slick Coat formulation is identical or that these packages are available now.

Construction
8-strand braid; pictured Teflon Surface Protector version
Listed strengths
20-50 lb
Line type
Braid main line

Match the Teflon-labeled version before comparing capacity

TCB 8 is an eight-strand braid main line. The verified 20 and 50 lb options serve different tackle and cover requirements, so choose for the presentation before comparing capacity. Plan enough working line above any backing for casts, runs and retying, and match your package to the version documented in the chart.

Your line. Your reel.

How much TCB 8 will fit?

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Calculated estimates, not measured fills. Stop at the reel manufacturer's fill level even if some line remains.

The numbers behind the setup

P-Line TCB 8 Braid diameter chart

US Teflon-labeled packages only: Green PXB8150-20, 20 lb, .010 in/.25 mm, 150 yd; Hi Vis Yellow PXBY8300-50, 50 lb, .014 in/.36 mm, 300 yd. Official 2021 US catalog p.4 corroborates this family's names and package identities. It does not date these photographs or verify current Slick Coat specifications.

US Teflon-version label references, linked to 2021 catalog identity; no current-edition or stock claim.
StrengthInchesmmSpools (yd)
0.0100.250 150
0.0140.360 300
Choosing your setup

Choosing your TCB 8 strength

The verified choices are 20 and 50 lb only; the gap does not imply that intermediate strengths were discontinued or never sold.

Keep Green 20 lb paired with its 150-yard label and Hi Vis Yellow 50 lb with its 300-yard label. Neither package size is copied across strengths.

Compare the exact diameter and use an appropriate drag and rod setup. The 50 lb package is not a substitute for a 20 lb package merely because both say TCB 8.

No assertion that historical Teflon-labeled TCB 8 and present Slick Coat are the same formulation. This is not a casting, abrasion, or strength test.

Want a guided recommendation?

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Compare actual diameters

Same pound test, different diameters

At your selected strength

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What changes with another line?

Select a replacement line to compare.

Nearby diameters in the line database

LineStrengthInchesDifference
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At the spooling bench

Backing, working line & leaders

Check a 150-yard working-line budget

For the supported Green 20 lb package, leave sufficient braid for casts, runs, and retying before allocating the remaining spool space to backing. A large capacity estimate does not create more than the 150 yards supplied.

Treat the 300-yard Yellow package separately

The verified Hi Vis Yellow 50 lb spool supplies 300 yards. Wind with consistent tension and follow the reel's fill guidance instead of assuming the full package belongs on a single reel.

Separate arbor attachment from the leader

A reel-approved braid attachment or suitable mono base addresses spool-arbor slip. A leader is a different section near the lure; a long topshot requires a separate space allowance.

Calculated examples

How Much Fits on These Reels?

Estimated full-spool capacity for the TCB 8 strength selected above, with no backing. These are calculated examples, not physical tests or recommendations for every pairing.

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TCB 8 questions, answered

Why are TCB 8, XTCB-8, and X-Braid linked here?

The official 2021 US catalog explicitly connects those names with the eight-strand Teflon Surface Protector family and the matching PXB/PXBY model codes. The identity is not inferred solely from a retailer title.

Is this the current Slick Coat version?

No such equivalence is established. This page is explicitly for the pictured US Teflon-labeled packages; the present official X-Braid page uses Slick Coat wording.

Were these exact photographs taken in 2021?

Their production and photography dates are unestablished. The 2021 US catalog supplies historical identity and package corroboration, not a date for the photos or a current availability claim.

Are 150 and 300 yards available for every listed strength?

That is not verified here. The accepted Green 20 lb label is 150 yards; the accepted Hi Vis Yellow 50 lb label is 300 yards. Other package combinations remain outside the chart.

Specifications & sources

The numeric authority is actual P-Line TCB 8 spool printing in Tackle Warehouse-hosted photos. The official 2021 US catalog, page 4, explicitly links X-Braid/XTCB-8, eight strands, Teflon Surface Protector, and PXB/PXBY package families. The current X-Braid Green page is retained as identity context only because it now says Slick Coat. No other strengths or shared package lengths are inferred.

Calculations use the catalog's listed inch diameters. Published inch and millimeter values may differ slightly because of rounding.

  • P-Line official US TCB 8 Braid identity Manufacturer construction and exact variant identity context. This page has no line diameter chart; its generic package options do not expand the supported labels.
  • P-Line official 2021 US catalog Historical p.4 identity, eight-strand Teflon construction, and exact PXB/PXBY package codes. Does not date the third-party photos or establish current Slick Coat equivalence.
  • P-Line printed package label: 20 lb Green Original third-party-hosted photo; numeric authority is the visible manufacturer's printing. PXB8150-20, 150 yd. Photo/production year unestablished. Not a retailer-authored diameter table.
  • P-Line printed package label: 50 lb Hi Vis Yellow Original third-party-hosted photo; numeric authority is the visible manufacturer's printing. PXBY8300-50, 300 yd. Photo/production year unestablished. Not a retailer-authored diameter table.